gym 100952

A

 #include <iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<set>

 using namespace std;

 #define PI acos(-1.0)

 typedef long long ll;

 typedef pair<int,int> P;

 const int maxn=1e5+,maxm=1e5+,inf=0x3f3f3f3f,mod=1e9+;

 const ll INF=1e13+;

 priority_queue<P,vector<P>,greater<P> >que;

 struct edge

 {

     int from,to;

     int cost;

 };

 int main()

 {

     int T;

     int h1,h2,m1,m2,s1,s2;

     scanf("%d",&T);

     while(T--)

     {

         scanf("%d%d%d%d%d%d",&h1,&m1,&s1,&h2,&m2,&s2);

         int sign=;

         if(h1<h2) sign=;

         else if(h1>h2) sign=;

         else

         {

             if(m1<m2) sign=;

             else if(m1>m2) sign=;

             else

             {

                 if(s1<s2) sign=;

                 else if(s1>s2) sign=;

             }

         }

         if(sign==) cout<<"Player1"<<endl;

         else if(sign==) cout<<"Player2"<<endl;

         else cout<<"Tie"<<endl;

     }

     return ;

 }

B

 #include <iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<set>

 using namespace std;

 #define PI acos(-1.0)

 typedef long long ll;

 typedef pair<int,int> P;

 const int maxn=1e5+,maxm=1e5+,inf=0x3f3f3f3f,mod=1e9+;

 const ll INF=1e13+;

 priority_queue<P,vector<P>,greater<P> >que;

 struct edge

 {

     int from,to;

     int cost;

 };

 int main()

 {

     int T;

     scanf("%d",&T);

     while(T--)

     {

         int n,m;

         scanf("%d%d",&n,&m);

         int ans=,cou=,sign=;

         while(true)

         {

             if(sign>m) break;

             cou=cou+sign;

             ans++;

             sign*=;

             if(cou>=n) break;

         }

         ////cout<<cou<<" "<<sign<<endl;

         if(cou>=n) cout<<ans<<endl;

         else

         {

             ans+=(n-cou)/m;

             if((n-cou)%m) ans++;

             cout<<ans<<endl;

         }

     }

     return ;

 }

C

 #include <iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<set>

 using namespace std;

 #define PI acos(-1.0)

 typedef long long ll;

 typedef pair<int,int> P;

 const int maxn=1e5+,maxm=1e5+,inf=0x3f3f3f3f,mod=1e9+;

 const ll INF=1e13+;

 priority_queue<P,vector<P>,greater<P> >que;

 struct edge

 {

     int from,to;

     int cost;

 };

 char s[maxn];

 int main()

 {

     int T;

     scanf("%d",&T);

     while(T--)

     {

         int n,p;

         scanf("%d%d",&n,&p);

         getchar();

         for(int i=; i<=n; i++) scanf("%c",&s[i]);

         //cout<<s+1<<endl;

         int ans=;

         int l=inf,r=;

         for(int i=; i<=n/; i++)

         {

             if(s[i]!=s[n+-i])

             {

                 l=min(l,i);

                 r=max(r,i);

             }

             if(s[i]<=s[n+-i]) swap(s[i],s[n+-i]);

             ans+=min(s[i]-s[n+-i],s[n+-i]+-s[i]);

         }

         if(p>n/) p=n+-p;

         if(l>r) cout<<<<endl;

         else

         printf("%d\n",ans+r-l+min(abs(p-l),abs(p-r)));

     }

     return ;

 }

D

 #include <iostream>

 #include <cstdio>

 #include <cmath>

 #include <string>

 #include <cstring>

 #include <algorithm>

 #include <queue>

 #include <map>

 #include <set>

 #include <stack>

 #include <sstream>

 #include <vector>

 using namespace std;

 typedef long long ll;

 /****************************************/

 const int N =  + ;

 const int MOD = (int)1e9 + ;

 int F[N], Finv[N], inv[N];//F是阶乘，Finv是逆元的阶乘

 void init(){

     inv[] = ;

     for(int i = ; i < N; i ++){

         inv[i] = (MOD - MOD / i) * 1ll * inv[MOD % i] % MOD;

     }

     F[] = Finv[] = ;

     for(int i = ; i < N; i ++){

         F[i] = F[i-] * 1ll * i % MOD;

         Finv[i] = Finv[i-] * 1ll * inv[i] % MOD;

     }

 }

 int comb(int n, int m){//comb(n, m)就是C(n, m)

     if(m <  || m > n) return ;

     return F[n] * 1ll * Finv[n - m] % MOD * Finv[m] % MOD;

 }

 int main(){

     init();

     int t,n,m,k,d;

     scanf("%d",&t);

     while(t--){

         scanf("%d%d%d%d",&n,&m,&k,&d);

         int ans=comb(n,m),x,da=,xiao=;

         for(int i=;i<n;i++){

             scanf("%d",&x);

             if(x>=d)da++;

         }

         xiao=n-da;

         for(int i=k-;i>=;i--){

             ans=(ans+MOD-(comb(da,i)*1ll*comb(xiao,m-i))%MOD)%MOD;

         }

         printf("%d\n",ans);

     }

 }

E

 #include <iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<set>

 using namespace std;

 #define PI acos(-1.0)

 typedef long long ll;

 typedef pair<int,string> P;

 const int maxn=1e5+,maxm=1e5+,inf=0x3f3f3f3f,mod=1e9+;

 const ll INF=1e13+;

 priority_queue<P,vector<P>,greater<P> >q;

 struct edge

 {

     int from,to;

     int cost;

 };

 int n,m,t;

 int pa[];

 int flag[][];

 int sign[][];

 int vis[];

 int ans=;

 void dfs(int x,int y,int cou)

 {

     //cout<<x<<" "<<y<<" "<<cou<<endl;

     if(x>n)

     {

         if(cou==t) ans++;

         return;

     }

     for(int k=; k<=t; k++)

     {

         if(k&&vis[k]) continue;

         if(x->=&&flag[k][sign[x-][y]]) continue;

         if(y->=&&flag[k][sign[x][y-]]) continue;

         sign[x][y]=k;

         vis[k]=;

         dfs(y==m?x+:x,y==m?:y+,k==?cou:cou+);

         sign[x][y]=;

         vis[k]=;

     }

 }

 int main()

 {

     int T;

     scanf("%d",&T);

     while(T--)

     {

         scanf("%d%d%d",&n,&m,&t);

         int p;

         scanf("%d",&p);

         for(int i=; i<=t; i++) pa[i]=i;

         memset(flag,,sizeof(flag));

         while(p--)

         {

             int a,b;

             scanf("%d%d",&a,&b);

             flag[a][b]=flag[b][a]=;

         }

         ans=;

         memset(vis,,sizeof(vis));

         memset(sign,,sizeof(sign));

         dfs(,,);

         if(ans==) cout<<"impossible"<<endl;

         else cout<<ans<<endl;

     }

     return ;

 }

F

 #include <iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<set>

 using namespace std;

 #define PI acos(-1.0)

 typedef long long ll;

 typedef pair<int,string> P;

 const int maxn=1e5+,maxm=1e5+,inf=0x3f3f3f3f,mod=1e9+;

 const ll INF=1e13+;

 priority_queue<P,vector<P>,greater<P> >q;

 struct edge

 {

     int from,to;

     int cost;

 };

 map<string,map<string,int> >G;

 map<string,int>dist;

 struct node

 {

     string str;

     int ss;

 }N[];

 bool cmp(struct node aa,struct node bb)

 {

     if(aa.ss!=bb.ss)

     return aa.ss<bb.ss;

     else

     return aa.str<bb.str;

 }

 void dij(string s)

 {

     dist[s]=;

     q.push(P(dist[s],s));

     while(!q.empty())

     {

         P p=q.top();

         q.pop();

         string u=p.second;

         map<string,int> ::iterator it;

         for(it=G[u].begin(); it!=G[u].end(); it++)

         {

             if((*it).second==) continue;

             //cout<<(*it).first<<" "<<(*it).second<<endl;

             string v=(*it).first;

             if(dist[v]>dist[u]+)

             {

                 dist[v]=dist[u]+;

                 q.push(P(dist[v],v));

             }

         }

     }

 }

 int main()

 {

     int T;

     scanf("%d",&T);

     while(T--)

     {

         int n;

         scanf("%d",&n);

         string s="Ahmad";

         G.clear();

         dist.clear();

         int jishu=;

         for(int i=; i<=n; i++)

         {

             string a,b,c;

             cin>>a>>b>>c;

             if(dist[a]==){

                 N[jishu++].str=a;

                 dist[a]=inf;

                 }

                   if(dist[b]==){

                 N[jishu++].str=b;

                 dist[b]=inf;

                 }

                   if(dist[c]==){

                 N[jishu++].str=c;

                 dist[c]=inf;

                 }

             G[a][b]=G[b][a]=G[b][c]=G[c][b]=G[a][c]=G[c][a]=;

         }

         dij(s);

         cout<<jishu<<endl;

         for(int i=;i<jishu;i++)

             N[i].ss=dist[N[i].str];

         sort(N,N+jishu,cmp);

         for(int i=;i<jishu;i++){

              if(N[i].ss>=inf)

                 cout<<N[i].str<<" "<<"undefined"<<endl;

               else

             cout<<N[i].str<<" "<<N[i].ss<<endl;

             }

     }

     return ;

 }

G

 #include <iostream>

 #include <cstdio>

 #include <cmath>

 #include <string>

 #include <cstring>

 #include <algorithm>

 #include <queue>

 #include <map>

 #include <set>

 #include <stack>

 #include <sstream>

 #include <vector>

 #define PI acos(-1.0)

 #define N 5e6+10

 #define M 1000000007

 #define inf 1e9

 #define eps 1e-8

 #define dazhi 2147483647

 using namespace std;

 typedef long long ll;

 ll pow(ll a,ll b,ll p){ll sum=;for(a%=p;b;a=a*a%p,b>>=)if(b&)sum=sum*a%p;return sum;}

 ll phi(ll n){ll i,re=n;for(i=;i*i<=n;i++)if(n%i==){re=re/i*(i-);while(n%i==)n/=i;}if(n>)re=re/n*(n-);return re%M;}

 void exgcd(ll a,ll b,ll &x,ll &y){if(!b){x=;y=;return;}exgcd(b,a%b,y,x);y-=x*(a/b);}

 ll gcd(ll a,ll b){return b==?a:gcd(b,a%b);}

 /****************************************/

  int main()

  {

      int t,n;

      scanf("%d",&t);

      while(t--)

      {

          scanf("%d",&n);

          if(n==)printf("Bob\n");

          else printf("Alice\n");

      }

  }

H

 #include<iostream>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<algorithm>

 #include<map>

 #include<queue>

 #include<stack>

 #include<vector>

 #include<bitset>

 #include<set>

 #define ll __int64

 #define mod 100000000

 #define N 5e6+10

 #define M 1e

 using namespace std;

 ll a[]={ 

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  };

 int  main()

 {  int n;

     while(scanf("%d",&n)!=EOF){

         if(n==)

             break;

         printf("%I64d\n",a[n-]);

     }

     return  ;

 }

I

 #include <cstdio>

 #include <cmath>

 #include <string>

 #include <cstring>

 #include <algorithm>

 #include <queue>

 #include <map>

 #include <set>

 #include <stack>

 #include <sstream>

 #include <vector>

 #define PI acos(-1.0)

 #define N 111111

 #define M 1000000007

 #define inf 1e9

 #define eps 1e-8

 #define dazhi 2147483647

 using namespace std;

 typedef unsigned long long ll;

 ll pow(ll a,ll b,ll p){ll sum=;for(a%=p;b;a=a*a%p,b>>=)if(b&)sum=sum*a%p;return sum;}

 ll phi(ll n){ll i,re=n;for(i=;i*i<=n;i++)if(n%i==){re=re/i*(i-);while(n%i==)n/=i;}if(n>)re=re/n*(n-);return re%M;}

 void exgcd(ll a,ll b,ll &x,ll &y){if(!b){x=;y=;return;}exgcd(b,a%b,y,x);y-=x*(a/b);}

 ll gcd(ll a,ll b){return b==?a:gcd(b,a%b);}

 /****************************************/

 ll b[N];

 int main()

 {

     //ll x,y,t=0;

     int n,x,y,t=;

     while(scanf("%d%d%d",&n,&x,&y)!=EOF){

     t++;

     if(n==&&x==&&y==)break;

     for(int i=;i<=n;i++){

         scanf("%lld",&b[i]);

     }

     for(int i=;i<n;i++)

         scanf("%lld",&b[n+n-i]);

     if(x==)y=*n-y+;

     ll xiao=1e14,biao;

     for(int i=y;i<=*n;i++){

         //xiao=min(xiao,b[i]);

         if(b[i]<xiao)xiao=b[i],biao=i;

     }

     for(int i=;i<y;i++){

         if(b[i]<xiao)xiao=b[i],biao=i;

     }

     ll ans=;

     if(biao<y){

         for(int i=;i<=*n;i++)

             b[i]-=xiao+,ans+=xiao+;

         for(int i=biao;i<y;i++)

             b[i]++,ans--;

     }

     else{

         for(int i=;i<=*n;i++)

             b[i]-=xiao,ans+=xiao;

         for(int i=y;i<biao;i++)

             b[i]--,ans++;

     }

     b[biao]=ans;

     printf("Case %d:\n",t);

     if(biao<=n){

         printf("INVALID\n");

         continue;

     }

     for(int i=;i<=n;i++){

         printf("%lld ",b[i]);

     }

     cout<<endl;

     for(int i=;i<n;i++)

     {

          printf("%lld ",b[n+n-i]);

     }

     cout<<endl;

     }

 }

J

 #pragma comment(linker, "/STACK:102400000,102400000")

 #include <cstdio>

 #include <iostream>

 #include <cstdlib>

 #include <cstring>

 #include <algorithm>

 #include <cmath>

 #include <cctype>

 #include <map>

 #include <set>

 #include <queue>

 #include <bitset>

 #include <string>

 #include <complex>

 using namespace std;

 typedef pair<int,int> Pii;

 typedef long long LL;

 typedef unsigned long long ULL;

 typedef double DBL;

 typedef long double LDBL;

 #define MST(a,b) memset(a,b,sizeof(a))

 #define CLR(a) MST(a,0)

 #define SQR(a) ((a)*(a))

 #define PCUT puts("\n----------")

 const int maxn=+;

 const DBL eps=1e-;

 int sgn(DBL x){return x>eps? : (x<-eps? -: );}

 struct Vector

 {

     DBL x,y;

     Vector(DBL _x=, DBL _y=):x(_x),y(_y){}

     Vector operator + (const Vector &rhs) const {return Vector(x+rhs.x, y+rhs.y);}

     Vector operator - (const Vector &rhs) const {return Vector(x-rhs.x, y-rhs.y);}

     Vector operator * (const DBL &rhs) const {return Vector(x*rhs, y*rhs);}

     Vector operator / (const DBL &rhs) const {return Vector(x/rhs, y/rhs);}

     DBL operator * (const Vector &rhs) const {return x*rhs.x + y*rhs.y;}

     DBL operator ^ (const Vector &rhs) const {return x*rhs.y - rhs.x*y;}

     int read(){return scanf("%lf%lf", &x, &y);}

 };

 typedef Vector Point;

 struct Line

 {

     Point u,v;

     Line(){}

     Line(Point _u,Point _v):u(_u),v(_v){}

 };

 int N,M;

 Point A[maxn], B[maxn];

 DBL Area(int,Point*);

 DBL CPIA(Point*,Point*,int,int);

 DBL SPIA(Point*,Point*,int,int);

 int main()

 {

   int t;

   scanf("%d",&t);

   for(int p=;p<=t;p++){

         scanf("%d%d", &N, &M);

         for(int i=; i<N; i++) A[i].read();;

         for(int i=; i<M; i++) B[i].read();

         printf("%.4f\n",SPIA(A,B,N,M));

   }

     return ;

 }

 DBL Area(int siz, Point p[])

 {

     DBL res=;

     for(int i=; i<siz; i++) res += (p[i-]^p[i]);

     res += (p[siz-]^p[]);

     return abs(res*0.5);

 }

 Point GetLineIntSec(Line l1, Line l2)

 {

     DBL a = (l1.v-l1.u)^(l2.u-l1.u), b = (l1.u-l1.v)^(l2.v-l1.v);

     if(sgn(a+b)==) return Point(1e9,1e9);

     return Point((l2.u.x * b + l2.v.x * a) / (a + b), (l2.u.y * b + l2.v.y * a) / (a + b));

 }

 DBL CPIA(Point a[], Point b[], int na, int nb)

 {

     Point p[], tmp[]; // na,nb <=20

     int i, j, tn, sflag, eflag;

     a[na] = a[], b[nb] = b[];

     memcpy(p,b,sizeof(Point)*(nb + ));

     for(i = ; i < na && nb > ; i++)

     {

         sflag = sgn((a[i+]-a[i])^(p[]-a[i]));

         for(j = tn = ; j < nb; j++, sflag = eflag)

         {

             if(sflag>=) tmp[tn++] = p[j];

             eflag = sgn( (a[i + ]-a[i])^(p[j + ]-a[i]));

             if((sflag ^ eflag) == -)

                 tmp[tn++] = GetLineIntSec( Line(a[i], a[i + ]) , Line(p[j], p[j + ]));

         }

         memcpy(p, tmp, sizeof(Point) * tn);

         nb = tn, p[nb] = p[];

     }

     if(nb < ) return 0.0;

     return Area(nb, p);

 }

 DBL SPIA(Point a[], Point b[], int na, int nb)

 {

     int i, j;

     Point t1[], t2[];

     double res = , num1, num2;

     a[na] = t1[] = a[], b[nb] = t2[] = b[];

     for(i = ; i < na; i++)

     {

         t1[] = a[i-], t1[] = a[i];

         num1 = sgn( (t1[]-t1[])^(t1[]-t1[]));

         if(num1 < ) swap(t1[], t1[]);

         for(j = ; j < nb; j++)

         {

             t2[] = b[j - ], t2[] = b[j];

             num2 = sgn((t2[]-t2[])^(t2[]-t2[]));

             if(num2 < ) swap(t2[], t2[]);

             res += CPIA(t1, t2, , ) * num1 * num2;

         }

     }

     return res;

 }

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