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Cod sursa(job #36206)
#include<stdio.h>
#include<stdlib.h>
int nr[50001],s1[50001],s2[50001];
int main(){
FILE*in=fopen("secv2.in","r");
FILE*out=fopen("secv2.out","w");
int n,k,i,p1,p2,s=0,max;
fscanf(in,"%d %d",&n,&k);
for(i=0;i<n;i++)
fscanf(in,"%d",&nr[i]);
s1[0]=nr[0];
for(i=1;i<n;i++)
s1[i]=s1[i-1]+nr[i];
if(n==k){
fprintf(out,"1 %d %d",k,s1[k-1]);
return 0;
}
s2[n-1]=nr[n-1];
for(i=n-2;i>=0;i--)
s2[i]=s2[i+1]+nr[i];
max=-30000;
for(i=0;i<n;i++){
if(s1[i]>max){
max=s1[i];
p2=i;
}
}
max=-30000;
for(i=n-1;i>=0;i--){
if(s2[i]>max){
max=s2[i];
p1=i;
}
}
for(i=p1;i<=p2;i++)
s=s+nr[i];
fprintf(out,"%d %d %d\n",p1+1,p2+1,s);
return 0;
}