Pagini recente » Statistici Patrick Ivan (holy_ments) | Cod sursa (job #2723344) | Profil linda | Monitorul de evaluare | Cod sursa (job #191306)
Cod sursa(job #191306)
#include<stdio.h>
#include<iostream>
#include<stdlib.h>
#define Max 50103
FILE*f=fopen("semne.in","r");
FILE*g=fopen("semne.out","w");
long long s,suma,a[Max],n,minus[Max], plus[Max],p,k;
char u[Max];
void read()
{
fscanf(f,"%lld %lld",&n,&s);
for(int i=1;i<=n;++i)
{
fscanf(f,"%lld",&a[i]);
if(suma+a[i]<=s) u[i]='+',suma+=a[i],plus[++p]=i;
else suma-=a[i], u[i]='-',minus[++k]=i;
}
}
int main()
{
read();
int i;
int x;
srand(time(0));
while(suma!=s)
{
if(suma<s)
{
x=rand()%k+1;
suma+=2*a[minus[x]];
plus[++p]=minus[x];
u[minus[x]]='+';
minus[x]=minus[k];
k--;
}
else
{
x=rand()%p+1;
suma-=2*a[plus[x]];
minus[++k]=plus[x];
u[plus[x]]='-';
plus[x]=plus[p];
--p;
}
}
for(i=1;i<=n;++i) fprintf(g,"%c",u[i]);
return 0;
}