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Cod sursa(job #898607)
#include <iostream>
#include <fstream>
using namespace std;
int main()
{
ifstream f("datorii.in");
ofstream g("datorii.out");
long N,M,i,v[1000],s,arb,j,suma,Q,P;
f>>N>>M;
for(i=1;i<=N;i++)
{
f>>s;
v[i]=s;
}
for(i=1;i<=M;i++)
{
suma=0;
f>>arb>>P>>Q;
if(arb==1)
{
for(j=P;j<=Q;j++)
suma=suma+v[j];
g<<suma<<"\n";
}
else
v[P]=v[P]-Q;
}
}