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Cod sursa(job #643572)
#include<fstream>
#define dim 50001
using namespace std;
ifstream f("secv2.in");
ofstream g("secv2.out");
int a[dim],n,i,k,sum,min1=1000000,max1=-1000000;
int pozmin,pozstart,pozmax;
int main() {
f>>n>>k;
int x;
for(i=1;i<=n;i++) {
f>>x;
a[i]=a[i-1]+x;
}
for(i=k;i<=n;i++) {
if(min1>a[i-k]) {
min1=a[i-k];
pozmin=i-k+1;
}
if(max1<a[i]-min1) {
max1=a[i]-min1;
pozstart=pozmin;
pozmax=i;
}
}
g<<pozstart<<" "<<pozmax<<" "<<max1;
return 0;
}