Cod sursa(job #2022492)

Utilizator Vlad3108Tir Vlad Ioan Vlad3108 Data 16 septembrie 2017 17:05:35
Problema Bilute Scor 0
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.78 kb
#include <bits/stdc++.h>
using namespace std;
struct Bila{
    int l,c;
}v[30005];
main(){
    freopen("bilute.in","r",stdin);
    freopen("bilute.out","w",stdout);
    int n;
    long long total=0,Min=LLONG_MAX,poz=0;
    scanf("%d",&n);
    long long left=0,right=0,cntleft=0,cntright=0;
    for(int i=1;i<=n;++i)
        scanf("%d %d",&v[i].l,&v[i].c),total+=1LL*v[i].l*v[i].c;
    for(int i=2;i<=n;++i)
        right+=1LL*v[i].l*(i-1),cntright+=1LL*v[i].l;
    for(int i=1;i<=n;++i){
        long long x=1LL*total+left+right-v[i].l*v[i].c;
        if(x<Min){
            Min=x;
            poz=i;
        }
        cntleft+=1LL*v[i].l;
        left+=1LL*cntleft;
        right-=1LL*cntright;
        cntright-=1LL*v[i+1].l;
    }
    printf("%d %lld\n",poz,Min);
}