제출 #8387

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
8387		tncks0121	Uniting (kriii2_U)	C++98	1 / 4	8 ms	1088 KiB

U

#define _CRT_SECURE_NO_WARNINGS
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <string>
#include <functional>
#include <vector>
#include <deque>
#include <utility>
#include <bitset>
#include <limits.h> 
#include <time.h>
 
using namespace std;
typedef long long ll;
typedef unsigned long long llu;
typedef double lf;
typedef unsigned int uint;
typedef long double llf;
typedef pair<int, int> pii;

int N;
ll res1;

int main() {
	scanf("%d", &N);
	
	ll sum = 0;	
	for(int i = 1; i <= N; i++) {
		int si; scanf("%d", &si);
		res1 += sum * si;
		sum += si;
	}

	printf("%lld\n-bnjnfkafjnsdhbvsdfuhvbuigfuawefuawruewbwan\n", res1, sum);


	return 0;
}

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