Codeforces#313

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#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
    int n,i;
    while(cin>>n)
    {
        bool flag = false;
        while(n--)
        {
            cin>>i;
            if(i==1)
                flag=true;
        }
        cout<<(flag?-1:1)<<endl;
    }
    return 0;
}

#include <iostream>
#include <stdio.h>
using namespace std;
int main()
{
    int a,b,c,d,e,f;
    while(cin>>a>>b>>c>>d>>e>>f)
        printf("%d\n",(a+b+c)*(a+b+c)-a*a-c*c-e*e);
    return 0;
}

#include <iostream>
using namespace std;
string solve(string k)
{
    if(k.length()%2)
        return k;
    string m = solve(k.substr(0,k.length()/2));
    string n = solve(k.substr(k.length()/2,k.length()));
    if(m < n) return n+m;
    return m+n;
}
int main()
{
    string a,b;
    cin>>a>>b;
    cout<<(solve(a) == solve(b)?"YES":"NO")<<endl;
    return 0;
}

Codeforces#313

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原文地址：http://blog.csdn.net/k183000860/article/details/47090283