Cod sursa(job #651234)

Utilizator alexalbu95Albu Alexandru alexalbu95 Data 20 decembrie 2011 00:18:35
Problema Subsecventa de suma maxima Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.96 kb
#include <fstream>
#include <cstring>
using namespace std;

const char input[]="ssm.in";
const char output[]="ssm.out";
const int nmax=30000005;

ifstream f(input);
ofstream g(output);

int nr, i, k, a[nmax], n, maxim=-nmax, pozi, pozf, sum, inc, semn=1;
char s[nmax];

int main()
{
    f>>n;
    f.get();
    f.getline(s, nmax);
    int x=strlen(s);
    for(i=0; i<=x; ++i)
    {
        if(s[i]=='-') semn=-1;
        if(s[i]>='0' && s[i]<='9') nr=nr*10+s[i]-'0';
        else if(s[i-1]>='0' && s[i-1]<='9')
             {
                 a[++k]=nr*semn;
                 nr=0;
                 semn=1;
             }
    }

    for(i=1; i<=k; ++i)
    {
        if(sum<0)
        {
            sum=a[i];
            inc=i;
        }
        else sum+=a[i];

        if(sum>maxim)
        {
            maxim=sum;
            pozf=i;
            pozi=inc;
        }
    }

    g<<maxim<<" "<<pozi<<" "<<pozf<<"\n";

    return 0;
}