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Cod sursa(job #14351)
#include<fstream>
using namespace std;
fstream f,g;
long A[15001],B[15001],C[15001],N,M,i,j,x,y,z,s,ok;
int main()
{
f.open("datorii.in",ios::in);
g.open("datorii.out",ios::out);
f>>N>>M;
B[0]=0;
C[0]=0;
for (i=1;i<=N;i++)
{
C[0]=0;
f>>A[i];
B[i]=B[i-1]+A[i];
}
ok=N+1;
for (i=1;i<=M;i++)
{
f>>x>>y>>z;
if (x==0)
{
C[y]+=z;
if (y<ok)ok=y;
}
else
{
if (ok<N+1)
{
s=0;
for (j=ok;j<=N;j++)
{
s=s+C[j]; B[j]-=s; C[j]=0;
}
ok=N+1;
}
g<<B[z]-B[y-1]<<endl;
}
}
g.close();
f.close();
return 0;
}