Submission #2415

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
2415	2013-07-21T09:22:02 Z	hana5505	지우개 (GA4_eraser)	C++	Compilation error	0 ms	0 KB

eraser

#include<stdio.h>
int mod=1000000007;
long long ar[100001];
int aa[100001];
long long sum1[100001];
long long sum2[100001];
int main()
{
	long long s=0;
	int n,i,size=0;

	scanf("%d",&n);

	for(i=1;i<=n;i++){
		scanf("%lld",&ar[i]);
		aa[(int)ar[i]]++;
	}

	for(i=1;i<=100000;i++){
		if(aa[i])
			ar[++size]=i;
	}

	for(i=1;i<=size;i++){
		sum1[i]=( sum1[i-1]+(ar[i]*aa[ar[i]])%mod )%mod;
		sum2[i]=( sum2[i-1]+(( (ar[i]*aa[ar[i]])%mod )*( (ar[i]*aa[ar[i]])%mod )%mod);
	}

	for(i=1;i<=size-2;i++){
		s+=aa[(int)ar[i]]*ar[i]*(((((sum1[size]-sum1[i])%mod)*((sum1[size]-sum1[i])%mod)-(sum2[size]-sum2[i]))/2)%mod);
		s=s%mod;
	}

	printf("%lld",s);
}

Compilation message

sequence.cpp: In function 'int main()':
sequence.cpp:26: error: expected `)' before ';' token