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Cod sursa(job #491143)
#include <iostream>
#include <fstream>
using namespace std;
int n,m,i,v[15000],op,j,p,q,s;
int main() {
ifstream f("datorii.in");
f>>n>>m;
for (i=1; i<=n; i++)
f>>v[i];
for (i=1; i<=m; i++) {
f>>op;
if (op==1) {
f>>q; f>>p;
s=0;
for (j=q; j<=p; j++)
s+=v[j];
cout<<s<<endl;
}
else {
f>>q>>p;
v[q]-=p;
}
}
return 0;
}