Cod sursa(job #2022488)

Utilizator Vlad3108Tir Vlad Ioan Vlad3108 Data 16 septembrie 2017 17:02:26
Problema Bilute Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.78 kb
#include <bits/stdc++.h>
#define int long long
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("%lld",&n);
    long long left=0,right=0,cntleft=0,cntright=0;
    for(int i=1;i<=n;++i)
        scanf("%lld %lld",&v[i].l,&v[i].c),total+=v[i].l*v[i].c;
    for(int i=2;i<=n;++i)
        right+=v[i].l*(i-1),cntright+=v[i].l;
    for(int i=1;i<=n;++i){
        long long x=total+left+right-v[i].l*v[i].c;
        if(x<Min){
            Min=x;
            poz=i;
        }
        cntleft+=v[i].l;
        left+=cntleft;
        right-=cntright;
        cntright-=v[i+1].l;
    }
    printf("%lld %lld\n",poz,Min);
}