Pagini recente » Cod sursa (job #576708) | Cod sursa (job #650359) | Cod sursa (job #1067177) | Cod sursa (job #1331893) | Cod sursa (job #2613665)
#include <fstream>
#include <iostream>
#define N 100010
std::ifstream f("cautbin.in");
std::ofstream g("cautbin.out");
int n, m, v[N];
int bsearch0(int p, int u, int key) {
int m;
while (p <= u) {
m = (p + u) / 2;
if (v[m] <= key)
p = m + 1;
else
u = m - 1;
}
m = (p + u) / 2;
if (v[m] > key) m--;
if (v[m] == key)
return m + 1;
return -1;
}
int bsearch1(int p, int u, int key) {
int m, n = u;
while (p < u) {
m = (p + u) / 2;
if (v[m] <= key)
p = m + 1;
else
u = m;
}
m = (p + u) / 2;
if (v[m] > key)
--m;
return m + 1;
}
int bsearch2(int p, int u, int key) {
int m;
while (p < u) {
m = (p + u) / 2;
if (v[m] < key)
p = m + 1;
else
u = m;
}
m = (p + u) / 2;
if (v[m] < key)
++m;
return m + 1;
}
int main()
{
f >> n;
for (int i = 0; i < n; i++)
f >> v[i];
f >> m;
while (m --)
{
int tip, x;
f >> tip;
f >> x;
if (tip == 0)
{
g << bsearch0(0, n - 1, x) << '\n';
}
if (tip == 1) {
g << bsearch1(0, n - 1, x) << '\n';
}
if (tip == 2) {
g << bsearch2(0, n - 1, x) << '\n';
}
}
}