Pagini recente » Cod sursa (job #1874702) | Cod sursa (job #1118175) | Istoria paginii runda/redsnow_3 | Cod sursa (job #1497404) | Cod sursa (job #71365)
Cod sursa(job #71365)
using namespace std;
#define MAX_N 50005
#include <stdio.h>
#include <stdlib.h>
FILE *fin=fopen("semne.in","r"),
*fout=fopen("semne.out","w");
int n,i,sp,sm,s;
int a[MAX_N];
bool p[MAX_N];
int main()
{
fscanf(fin,"%d %d\n",&n,&s);
for (i=1; i<=n; i++)
{
fscanf(fin,"%d",a+i);
sp+=a[i]; p[i]=true;
}
int c;
while (sp-sm!=s)
{
c=(rand() % n);
if (sp-sm>s && p[c]==true)
{
sp-=a[c]; sm+=a[c];
p[c]=false;
continue;
}
if (sp-sm<s && p[c]==false)
{
sp+=a[c]; sm-=a[c];
p[c]=true;
continue;
}
}
for (i=1; i<=n; i++)
if (p[i]==true) fprintf(fout,"+");
else fprintf(fout,"-");
fclose(fin); fclose(fout);
return 0;
}