Pagini recente » Cod sursa (job #1878773) | Cod sursa (job #1003328) | Cod sursa (job #966889) | Cod sursa (job #353585) | Cod sursa (job #1549126)
#include <fstream>
#include <cmath>
#include <vector>
#include <set>
#include <algorithm>
#include <cstring>
#include <map>
#include <iomanip>
#include <time.h>
#include <stdio.h>
//#include <iostream>
using namespace std;
ifstream cin("cautbin.in");
ofstream cout("cautbin.out");
int bsearch0(int n, int x[], int element, int st, int dr)
{
int val = -1;
while(st <= dr)
{
int m = (st + dr) / 2;
if(x[m] == element)
val = m;
if(x[m] <= element)
st = m + 1;
else
dr = m - 1;
}
if(val != -1)
return val + 1;
return -1;
}
int bsearch1(int n, int x[], int element, int st, int dr)
{
int val = -1, cst = st, cdr = dr;
while(st <= dr)
{
int m = (st + dr) / 2;
if(x[m] == element)
val = m;
if(x[m] <= element)
st = m + 1;
else
dr = m - 1;
}
if(val != -1)
return val + 1;
return bsearch1(n, x, x[st - 1], cst, cdr);
}
int bsearch2(int n, int x[], int element, int st, int dr)
{
int val = -1, cst = st, cdr = dr;
while(st <= dr)
{
int m = (st + dr) / 2;
if(x[m] == element)
val = m;
if(x[m] >= element)
dr = m - 1;
else
st = m + 1;
}
if(val != -1)
return val + 1;
return bsearch2(n, x, x[st], cst, cdr);
}
int main(){
int n, m, x[100004];
cin >> n;
for(int i = 0; i < n; i++)
cin >> x[i];
cin >> m;
int a, b;
for(int i = 0; i < m; i++)
{
cin >> a >> b;
if(a == 0)
cout << bsearch0(n, x, b, 0, n - 1) << "\n";
if(a == 1)
cout << bsearch1(n, x, b, 0, n - 1) << "\n";
if(a == 2)
cout << bsearch2(n, x, b, 0, n - 1) << "\n";
}
return 0;
}