Codeforces Round #445

ACM ICPC

每个队伍必须是3个人

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<vector>
#include<algorithm>
using namespace std;
int cmp(const void * x, const void * y) {
    //x < y
    return (*((double *)(x))) > (*((double *)(y))) ? 1 : -1;
}
int a[6];
int main() {
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
#endif
    for (int i = 0; i < 6; i++) scanf("%d", &a[i]);
    int sum = 0;
    for (int i = 0; i < 6; i++) sum += a[i];
    bool f = false;
    for (int i = 0; i < 6; i++) {
        for (int j = 0; j < 6; j++) {
            for (int k = 0; k < 6; k++) {
                if (i != j && j != k && i != k && (a[i] + a[j] + a[k]) * 2 == sum)f = true;
            }
        }
    }
    if (f) printf("Yes\n");
    else printf("No\n");
    return 0;
}

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