[BaekJoon][10815] 숫자 카드

BAEKJOON ONLINE JUDGE

10815 숫자 카드

https://www.acmicpc.net/problem/10815

#include <cstdio>
#include <algorithm>
using namespace std;
 
int n;
int number[500001];
 
int bsearch(int num)
{
    int s = 0, e = n - 1;
 
    while (s <= e) {
        int m = (s + e) / 2;
 
        if (number[m] == num)        return 1;
        else if (number[m] < num)    s = m + 1;
        else                         e = m - 1;
    }
 
    return 0;
}
 
int main()
{
    int m;
    int num;
 
    scanf("%d", &n);
 
    for (int i = 0; i < n; i++) {
        scanf("%d", &number[i]);
    }
 
    sort(number, number + n);
 
    scanf("%d", &m);
    for (int i = 0; i < m; i++) {
        scanf("%d", &num);
 
        printf("%d ", bsearch(num));
    }
    printf("\n");
 
    return 0;
}