【codeforces 816A】Karen and Morning

【题目链接】:http://codeforces.com/contest/816/problem/A

【题意】



让你一分钟一分钟地累加时间;

问多长时间以后是个回文串;

【题解】



reverse之后如果和原串相同,则为回文串;

模拟就好



【Number Of WA】



0



【完整代码】

#include <bits/stdc++.h>
using namespace std;
#define lson l,m,rt<<1
#define rson m+1,r,rt<<1|1
#define LL long long
#define rep1(i,a,b) for (int i = a;i <= b;i++)
#define rep2(i,a,b) for (int i = a;i >= b;i--)
#define mp make_pair
#define pb push_back
#define fi first
#define se second
#define ms(x,y) memset(x,y,sizeof x)
#define Open() freopen("F:\\rush.txt","r",stdin)
#define Close() ios::sync_with_stdio(0)

typedef pair<int,int> pii;
typedef pair<LL,LL> pll;

const int dx[9] = {0,1,-1,0,0,-1,-1,1,1};
const int dy[9] = {0,0,0,-1,1,-1,1,-1,1};
const double pi = acos(-1.0);
const int N = 110;

int n;
int h,m;

string zh(int h,int m){
    int a,b,c,d;
    a = h/10;
    string s = "";
    s+= (char) a + '0';
    b = h%10;
    s+= (char) b + '0';
    s+=':';
    c = m/10;
    s+=(char) c+'0';
    d = m%10;
    s+=(char) d+'0';
    return s;
}

int main(){
    //Open();
    Close();
    scanf("%d:%d",&h,&m);
    int now = 0;
    while (1){
        string s = zh(h,m);
        string ts = s;
        reverse(ts.begin(),ts.end());
        if (ts==s){
            cout << now<<endl;
            return 0;
        }
        now++;
        m++;
        if (m>59){
            m = 0;
            h++;
            if (h>23) h = 0;
        }
    }
    return 0;
}