Cod sursa(job #2277143)

Utilizator dragomirandreeaDragomir Andrea dragomirandreea Data 5 noiembrie 2018 20:19:13
Problema Cautare binara Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.85 kb
#include <iostream>
#include <fstream>
using namespace std;
int s[100000],N,M,v[10000],p,u,ok,i,m;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
void intrebare1( int x)
{ int poz;
 int p=1;int u=N;
 while(p<=u&&!ok)
 {m=(p+u)/2;
 if(v[m]<=x) {poz=m;
 p=m+1;
 }
 else u=m+1;
  } 
if(v[poz]!=x) g<<-1<<endl;
else g<<poz<<endl;
}
void intrebare2( int x)
{int poz;
 int p=1;int u=N;
 while(p<=u&&!ok)
 {m=(p+u)/2;
 if(v[m]<=x) {poz=m;
 p=m+1;
 }
 else u=m+1;
  } 
g<<poz<<endl;
}
void intrebare3( int x)
{int poz;
 int p=1;int u=N;
 while(p<=u&&!ok)
 {m=(p+u)/2;
 if(v[m]>=x){poz=m;
 u=m-1;}
 else u=m+1;
}
 g<<poz<<endl;
}
int main() { 
int x,y;
 f>>N;
 for(i=1;i<=N;i++) f>>v[i];
 cin>>M;
 for(i=1;i<=M*2;i++) f>>x>>y;
 if(y==0) intrebare1(x);
 else if(y==1) intrebare2(x);
 else intrebare3(x);
 
return 0;
}