Pagini recente » Cod sursa (job #2653668) | Cod sursa (job #334570) | Cod sursa (job #1123020) | Cod sursa (job #1939628) | Cod sursa (job #2613856)
#include <iostream>
#include <fstream>
#define N 100010
using namespace std;
ifstream in("cautbin.in");
ofstream out("cautbin.out");
int a[N];
int cautare_bin0 (int p, int u, int val) {
int mj;
while(p<u)
{
mj= (p+u)/2;
if(a[mj]<=val)
p=mj+1;
else
u=mj-1;
}
mj= (p+u)/2;
while (a[mj] > val)
mj--;
if(a[mj]==val)
return mj;
return -1;
}
int cautare_bin1 (int p, int u, int val) {
int mj;
while(p<u){
mj= (p+u)/2;
if(a[mj]<=val)
p=mj+1;
else
u=mj-1;
}
mj= (p+u)/2;
while (a[mj] > val)
mj--;
return mj;
}
int cautare_bin2 (int p, int u, int val) {
int mj;
while(p<u) {
mj= (p+u)/2;
if(a[mj]<val)
p=mj+1;
else
u=mj-1;
}
mj= (p+u)/2;
while (a[mj] >= val)
mj--;
return mj + 1;
}
int main()
{ int i,n,m,x,y;
in>>n;
for(i=1;i<=n;i++)
in>>a[i];
in>>m;
while(m--)
{
in>>x>>y;
if(x==0)
out<<cautare_bin0(1,n,y)<<endl;
else if(x==1)
out<<cautare_bin1(1,n,y)<<endl;
else if(x==2)
out<<cautare_bin2(1,n,y)<<endl;
}
return 0;
}