Cod sursa(job #260990)

Utilizator MariusMarius Stroe Marius Data 17 februarie 2009 19:59:14
Problema Subsecventa de suma maxima Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.76 kb
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;

const char iname[] = "ssm.in";
const char oname[] = "ssm.out";

const int MAXN = 6000005;

#define FOR(i, a, b)  for (int i = (a); i <= (b); ++ i)
#define Max(a, b)  ((a) > (b) ? (a) : (b))

int S[MAXN], n;

int main(void) {
    ifstream in(iname);
    in >> n;
    FOR (i, 1, n)  in >> S[i];

    int bestSum = -int(2e9), sum = 0, beg, end, idx;
    FOR (i, 1, n) {
        if (sum < 0)
            sum = S[i], idx = i;
        else
            sum += S[i];
        if (bestSum < sum)
            bestSum = sum, beg = idx, end = i;
    }
    ofstream out(oname);
    out << bestSum << " " << beg << " " << end;

    in.close(), out.close();
    return 0;
}