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답안 #1628

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1628 2013-07-11T10:14:55 Z gs13068 지우개 (GA4_eraser) C++
100 / 100
 18 ms 1668 KB 
#include<cstdio>

long long a[100001];
long long x,y,z,answer;

int main()
{
int i,j,n;
scanf("%d",&n);
for(i=0;i<n;i++)
{
scanf("%d",&j);
a[j]+=j;
a[j]%=1000000007;
}
for(i=1;i<=100000;i++)
{
x+=a[i];
x%=1000000007;
y+=a[i]*a[i]%1000000007;
y%=1000000007;
z+=a[i]*a[i]%1000000007*a[i]%1000000007;
z%=1000000007;
}
answer=x*x%1000000007*x%1000000007;
answer-=3*x%1000000007*y%1000000007;
answer+=1000000007;
answer%=1000000007;
answer+=2*z%1000000007;
answer%=1000000007;
answer*=166666668;
answer%=1000000007;
printf("%lld",answer);
}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1668 KB Output is correct
2 Correct 0 ms 1668 KB Output is correct
3 Correct 0 ms 1668 KB Output is correct
4 Correct 1 ms 1668 KB Output is correct
5 Correct 0 ms 1668 KB Output is correct
6 Correct 1 ms 1668 KB Output is correct
7 Correct 1 ms 1668 KB Output is correct
8 Correct 1 ms 1668 KB Output is correct
9 Correct 1 ms 1668 KB Output is correct
10 Correct 0 ms 1668 KB Output is correct

Subtask #2
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1668 KB Output is correct
2 Correct 1 ms 1668 KB Output is correct
3 Correct 1 ms 1668 KB Output is correct
4 Correct 1 ms 1668 KB Output is correct
5 Correct 1 ms 1668 KB Output is correct
6 Correct 1 ms 1668 KB Output is correct
7 Correct 1 ms 1668 KB Output is correct
8 Correct 1 ms 1668 KB Output is correct
9 Correct 1 ms 1668 KB Output is correct
10 Correct 1 ms 1668 KB Output is correct

Subtask #3
16.0 / 16.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1668 KB Output is correct
2 Correct 1 ms 1668 KB Output is correct
3 Correct 0 ms 1668 KB Output is correct
4 Correct 1 ms 1668 KB Output is correct
5 Correct 1 ms 1668 KB Output is correct
6 Correct 1 ms 1668 KB Output is correct
7 Correct 1 ms 1668 KB Output is correct
8 Correct 1 ms 1668 KB Output is correct
9 Correct 0 ms 1668 KB Output is correct
10 Correct 2 ms 1668 KB Output is correct

Subtask #4
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1668 KB Output is correct
2 Correct 1 ms 1668 KB Output is correct
3 Correct 1 ms 1668 KB Output is correct
4 Correct 1 ms 1668 KB Output is correct
5 Correct 1 ms 1668 KB Output is correct
6 Correct 1 ms 1668 KB Output is correct
7 Correct 1 ms 1668 KB Output is correct
8 Correct 1 ms 1668 KB Output is correct
9 Correct 1 ms 1668 KB Output is correct
10 Correct 1 ms 1668 KB Output is correct

Subtask #5
26.0 / 26.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 1668 KB Output is correct
2 Correct 2 ms 1668 KB Output is correct
3 Correct 3 ms 1668 KB Output is correct
4 Correct 12 ms 1668 KB Output is correct
5 Correct 1 ms 1668 KB Output is correct
6 Correct 12 ms 1668 KB Output is correct
7 Correct 5 ms 1668 KB Output is correct
8 Correct 15 ms 1668 KB Output is correct
9 Correct 10 ms 1668 KB Output is correct
10 Correct 13 ms 1668 KB Output is correct

Subtask #6
28.0 / 28.0

# 결과 실행 시간 메모리 Grader output
1 Correct 11 ms 1668 KB Output is correct
2 Correct 1 ms 1668 KB Output is correct
3 Correct 12 ms 1668 KB Output is correct
4 Correct 3 ms 1668 KB Output is correct
5 Correct 18 ms 1668 KB Output is correct
6 Correct 4 ms 1668 KB Output is correct
7 Correct 12 ms 1668 KB Output is correct
8 Correct 14 ms 1668 KB Output is correct
9 Correct 16 ms 1668 KB Output is correct
10 Correct 14 ms 1668 KB Output is correct