Cod sursa(job #305977)
Utilizator | Alexandru Gherghe brainwashed20 | Data | 19 aprilie 2009 01:21:11 |
---|---|---|---|
Problema | SequenceQuery | Scor | 60 |
Compilator | c | Status | done |
Runda | Arhiva de probleme | Marime | 0.53 kb |
#include<stdio.h>
#define X 100001
int sum(int x, int y, int a[])
{
int i,s=0,sbest=-X;
for(i=x; i<=y; ++i)
{
if(s>=0) s+=a[i];
else s=a[i];
if(s>sbest) sbest=s;
}
return sbest;
}
int main()
{
freopen("sequencequery.in","r",stdin);
freopen("sequencequery.out","w",stdout);
int x,y,a[X],n,m,i;
scanf("%d%d",&n,&m);
for(i=1; i<=n; ++i) scanf("%d",&a[i]);
for(; m; --m)
{
scanf("%d%d",&x,&y);
printf("%d\n",sum(x,y,a));
}
return 0;
}