Cod sursa(job #2755198)

Utilizator carinamariaCarina Maria Viespescu carinamaria Data 26 mai 2021 21:09:44
Problema Buline Scor 20
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.79 kb
#include <fstream>
using namespace std;
ifstream cin("buline.in");
ofstream cout("buline.out");
long long i, j, n, s, v[400001], semn, start, maxim, st, dr;
int main(){
    cin>>n;
    cin>>v[1]>>semn;
    if(semn==0)
        semn=-1;
    v[1]*=semn;
    s=v[1];
    for(i=2;i<=n;i++){
        cin>>v[i]>>semn;
        if(semn==0)
            semn=-1;
        v[i]*=semn;
    }
    for(i=n+1;i<=2*n;i++){
        v[i]=v[i-n];
    }
    maxim=v[1];
    start=1;
    for(i=2;i<2*n;i++){
        if(s<0){
            s=0;
            start=i;
        }
        s+=v[i];
        if(s>maxim && dr-st+1<=n){
            maxim=s;
            st=start;
            dr=i;
        }
        ///cout<<i<<" "<<maxim<<" "<<s<<"\n";
    }
    cout<<maxim<<" "<<st<<" "<<dr-st+1<<"\n";
}