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Cod sursa(job #389656)
#include<fstream.h>
ifstream f("datorii.in");
ofstream g("datorii.out");
int a[1001][1001],i,j,v[1001],n,m,s;
int main(){
f>>n>>m;
for(i=1;i<=n;i++)
f>>v[i];
for(i=1;i<=m;i++)
for(j=1;j<=3;j++)
f>>a[i][j];
for(i=1;i<=m;i++)
{s=0;
if(a[i][1]==1)
{ for(j=a[i][2];j<=a[i][3];j++)
s=s+v[j];
g<<s<<endl;
}
else
v[a[i][2]]=v[a[i][2]]-a[i][3];
}
f.close();g.close(); return 0;}