codeforces 558B Amr and The Large Array-yy
题意:有一个数组。如今要削减它的尺寸。数组中同样元素的个数的最大值为数组的魅力值,要求削减后魅力值不能降低,同一时候要尽可能的把尺寸减到最小
分析:水题,主要是不要想复杂了。还有就是沉下心来做
代码:
#include<iostream>
#include<cstring>
#include<algorithm>
#define INF 1000000007
#define max(a,b) a>b?a:b
using namespace std;
int n,a[100010];
int tot[1000010];
int l[1000010],r[1000010];
int main()
{
while(cin>>n){
memset(tot,0,sizeof(tot));
memset(l,0,sizeof(l));
memset(r,0,sizeof(r));
int mx=-1;
for(int i=1;i<=n;i++){
cin>>a[i];
if(tot[a[i]]==0) l[a[i]]=i,r[a[i]]=i;
else r[a[i]]=i;
tot[a[i]]++;
mx=max(mx,tot[a[i]]);
}
int mi=INF;
int ans;
for(int i=1;i<=n;i++){
if(tot[a[i]]==mx){
int tmp=r[a[i]]-l[a[i]];
if(mi>tmp){
mi=tmp;
ans=a[i];
}
}
}
cout<<l[ans]<<" "<<r[ans]<<endl;
}
}
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