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Cod sursa(job #254890)
#include <stdio.h>
#define N 250005
int n,m,v[N];
void citire()
{
int i;
scanf("%d%d",&n,&m);
for (i=1; i<=n; i++)
scanf("%d",&v[i]);
}
int modul(int x,int y)
{
if (x>y)
return x-y;
return y-x;
}
int operatie(int x,int y,int k)
{
int i,s=0;
for (i=x; i<=y; i++)
{
s+=v[i]*modul(i,k);
}
return s;
}
int calcul(int x,int y)
{
int i,pozmin,s=0,sum=0;
for (i=x; i<=y; i++)
s+=v[i];
for (i=x; i<=y && sum<=s/2; i++)
{
sum+=v[i];
pozmin=i;
}
printf("%d %d\n",pozmin,operatie(x,y,pozmin));
return 0;
}
void rezolvare()
{
int i,x,y;
for (i=1; i<=m; i++)
{
scanf("%d%d",&x,&y);
calcul(x,y);
}
}
int main()
{
freopen("cuburi2.in","r",stdin);
freopen("cuburi2.out","w",stdout);
citire();
rezolvare();
return 0;
}