Cod sursa(job #60820)

Utilizator DastasIonescu Vlad Dastas Data 16 mai 2007 22:41:58
Problema Buline Scor 10
Compilator cpp Status done
Runda Arhiva de probleme Marime 1.23 kb
#include <cstdio>
#define MAX 200001

FILE *in = fopen("buline.in","r"), *out = fopen("buline.out","w");
int n;
int a[MAX];

int sum = 0;

void read()
{
    fscanf(in, "%d", &n);

    int b = 0;
    for ( int i = 1; i <= n; ++i )
    {
        fscanf(in, "%d %d", &a[i], &b);

        if ( b == 0 )
            a[i] *= -1;

        sum += a[i];
    }
}

struct minim
{
    int val, lng, inc;
};

int main()
{
    read();

    minim *b = new minim[MAX];
    b[1].val = a[1];
    b[1].lng = 1;
    b[1].inc = 1;

    minim sol;
    sol = b[1];

    for ( int i = 2; i <= n; ++i )
    {
        if ( b[i-1].val + a[i] < a[i] )
        {
            b[i].val = b[i-1].val + a[i];
            b[i].lng = b[i-1].lng + 1;
            b[i].inc = b[i-1].inc;
        }
        else
        {
            b[i].val = a[i];
            b[i].lng = 1;
            b[i].inc = i;
        }

        if ( b[i].val < sol.val )
            sol = b[i];
    }

//
//    for ( int i = 1; i <= n; ++i )
//        printf("%d ", a[i]);

    if ( sol.inc < n )
        fprintf(out, "\n%d %d %d\n", sum-sol.val, sol.inc+1, n-sol.lng);
    else
        fprintf(out, "%d %d %d", sum-sol.val, 1, n-sol.lng);
	return 0;
}