Submission #1371003


Source Code Expand

#include <bits/stdc++.h>

#define lld long long
#define pp pair<int,int>
#define pb push_back
#define MOD 1000000007
#define left lleft
#define right rright
#define INF 2000000000
#define Linf 1000000000000000000LL
#define next nnext
#define minus mminus

using namespace std;

int N,M; lld ans;
lld x[100002],y[100002];
lld sumx[100002],sumy[100002];

int main(){
	scanf("%d %d",&N,&M);
	for(int i=1; i<=N; i++){
		scanf("%lld",&x[i]);
		sumx[i] = sumx[i-1]+x[i];
		sumx[i] %= MOD;
	}
	for(int i=1; i<=M; i++){
		scanf("%lld",&y[i]);
		sumy[i] = sumy[i-1]+y[i];
		sumy[i] %= MOD;
	}
	lld tmp = 0;
	for(int i=2; i<=M; i++){
		tmp += (y[i]*(i-1)-sumy[i-1]);
		tmp %= MOD;
	}
	for(int i=2; i<=N; i++){
		ans += (x[i]*(i-1)-sumx[i-1]);
		ans %= MOD;
	}
	ans *= tmp; ans %= MOD;
	if(ans < 0) ans += MOD;
	printf("%lld\n",ans);

	return 0;
}

Submission Info

Submission Time
Task D - ###
User suhgyuho
Language C++14 (GCC 5.4.1)
Score 500
Code Size 883 Byte
Status AC
Exec Time 26 ms
Memory 3328 KB

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&N,&M);
                      ^
./Main.cpp:23:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&x[i]);
                      ^
./Main.cpp:28:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld",&y[i]);
                      ^

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 500 / 500
Status
AC × 2
AC × 17
Set Name Test Cases
Sample 0_000.txt, 0_001.txt
All 0_000.txt, 0_001.txt, max.txt, min.txt, mod.txt, n2.txt, rndA.txt, rndB.txt, rndC.txt, rndD.txt, rndE.txt, rndF.txt, rndG.txt, rndH.txt, rndI.txt, rndJ.txt, var.txt
Case Name Status Exec Time Memory
0_000.txt AC 1 ms 256 KB
0_001.txt AC 1 ms 256 KB
max.txt AC 25 ms 3328 KB
min.txt AC 1 ms 256 KB
mod.txt AC 14 ms 1792 KB
n2.txt AC 13 ms 1792 KB
rndA.txt AC 26 ms 3328 KB
rndB.txt AC 26 ms 3328 KB
rndC.txt AC 26 ms 3328 KB
rndD.txt AC 26 ms 3328 KB
rndE.txt AC 26 ms 3328 KB
rndF.txt AC 26 ms 3328 KB
rndG.txt AC 26 ms 3328 KB
rndH.txt AC 26 ms 3328 KB
rndI.txt AC 26 ms 3328 KB
rndJ.txt AC 25 ms 3328 KB
var.txt AC 26 ms 3328 KB