Submission #65643265

Source Code Expand

#include <bits/stdc++.h>
 
using namespace std;

const int MOD=1e9+7;


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
	
	int n;
	cin>>n;
	
	long long tot=0,ans=0;
	
	for(int i=0; i<n; i++){
		long long x;
		cin>>x;
		ans+=x*tot;
		tot+=x;
		
	}
	cout<<ans; 
    
    return 0;
}

Submission Info

Submission Time
Task C - Sum of Product
User usernameson
Language C++ 20 (gcc 12.2)
Score 300
Code Size 321 Byte
Status AC
Exec Time 12 ms
Memory 3632 KiB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 300 / 300
Status
AC × 3
AC × 22
Set Name Test Cases
Sample 00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt
All 00_sample_00.txt, 00_sample_01.txt, 00_sample_02.txt, 01_random_00.txt, 01_random_01.txt, 01_random_02.txt, 01_random_03.txt, 01_random_04.txt, 01_random_05.txt, 01_random_06.txt, 01_random_07.txt, 01_random_08.txt, 01_random_09.txt, 01_random_10.txt, 01_random_11.txt, 01_random_12.txt, 01_random_13.txt, 01_random_14.txt, 02_handmade_00.txt, 02_handmade_01.txt, 02_handmade_02.txt, 02_handmade_03.txt
Case Name Status Exec Time Memory
00_sample_00.txt AC 1 ms 3420 KiB
00_sample_01.txt AC 1 ms 3436 KiB
00_sample_02.txt AC 1 ms 3492 KiB
01_random_00.txt AC 5 ms 3428 KiB
01_random_01.txt AC 9 ms 3480 KiB
01_random_02.txt AC 12 ms 3424 KiB
01_random_03.txt AC 6 ms 3360 KiB
01_random_04.txt AC 9 ms 3424 KiB
01_random_05.txt AC 12 ms 3480 KiB
01_random_06.txt AC 12 ms 3572 KiB
01_random_07.txt AC 12 ms 3476 KiB
01_random_08.txt AC 12 ms 3560 KiB
01_random_09.txt AC 12 ms 3436 KiB
01_random_10.txt AC 12 ms 3440 KiB
01_random_11.txt AC 12 ms 3432 KiB
01_random_12.txt AC 11 ms 3424 KiB
01_random_13.txt AC 12 ms 3476 KiB
01_random_14.txt AC 12 ms 3632 KiB
02_handmade_00.txt AC 1 ms 3412 KiB
02_handmade_01.txt AC 1 ms 3492 KiB
02_handmade_02.txt AC 8 ms 3368 KiB
02_handmade_03.txt AC 12 ms 3428 KiB