Pagini recente » Cod sursa (job #1402402) | Cod sursa (job #1757687) | Cod sursa (job #2139687) | Cod sursa (job #903243) | Cod sursa (job #2651309)
#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int cb(int v[], int n, int x)
{
int ls = 0,ld = n - 1,mij;
while (ls <= ld)
{
mij = (ls + ld) / 2;
if (v[mij] == x) return mij;
if (v[mij] < x) ls = mij + 1;
else ld = mij - 1;
}
return -1;
}
int cb1(int v[], int n, int x)
{
int ls = 0,ld = n - 1,mij;
while (ls <= ld)
{
mij = (ls + ld) / 2;
if (v[mij] == x) return mij;
if (v[mij] < x) ls = mij + 1;
else ld = mij - 1;
}
return ld;
}
int cb2(int v[], int n, int x)
{
int ls = 0,ld = n - 1,mij;
while (ls <= ld)
{
mij = (ls + ld) / 2;
if (v[mij] == x) return mij;
if (v[mij] < x) ls = mij + 1;
else ld = mij - 1;
}
return ls;
}
int main(void)
{
int n,v[100000], a, b, m;
fin >> n;
for (int i = 0; i < n; i++)
fin >> v[i];
sort(v, v + n);
fin >> m;
for (int i = 0; i < m; i++)
{
fin >> a >> b;
if (a == 0)
{
int p = cb(v, n, b);
if (p != -1)
{
while (v[p] == v[p + 1])
p++;
fout << p + 1 <<'\n';
}
else
fout << -1 <<'\n';
}
if (a == 1)
{
int p = cb1(v, n, b);
if (v[p] == b)
while (v[p] == v[p + 1])
p++;
fout << p + 1 <<'\n';
}
if (a == 2)
{
int p = cb2(v, n, b);
if (v[p] == b)
while (v[p] == v[p - 1])
p--;
fout << p + 1 <<'\n';
}
}
return 0;
}