Cod sursa(job #332695)
#include <cstdio>
#include <algorithm>
using namespace std;
const int MAX_N = 100005;
int n, m;
int v[MAX_N];
int main() {
freopen("cautbin.in", "r", stdin);
freopen("cautbin.out", "w", stdout);
scanf("%d", &n);
for (int i = 0; i < n; ++i)
scanf("%d", &v[i]);
for (scanf("%d", &m); m; --m) {
int op, val, ans;
scanf("%d %d", &op, &val);
switch (op) {
case 0: ans = upper_bound(v, v+n, val) - v - 1;
printf("%d\n", v[ans] == val ? ans + 1 : -1);
break;
case 1: printf("%d\n", upper_bound(v, v+n, val) - v); break;
case 2: printf("%d\n", upper_bound(v, v+n, val) - v + 1); break;
}
}
}