#include <bits/stdc++.h>
using namespace std ;
#define int long long
#define endl '\n'
#define all(a) a.begin() , a.end()
#define alr(a) a.rbegin() , a.rend()
signed main(){
ios_base::sync_with_stdio(0); cin.tie(0);cout.tie(0);
int n;
cin >> n;
vector < pair < int , int >> a(n);
for(int i = 0 ; i < n ; i++) {
cin >> a[i].first >> a[i].second;
}
vector < vector < int >> nxt(20, vector < int > (n + 1, -1));
for(int i = 0 ; i < n ; i++) {
int nxtt = -1;
for(int j = i + 1 ; j < n ; j++) {
int l = max(a[i].first, a[j].first);
int r = min(a[i].second, a[j].second);
if(l <= r) {
nxtt = j;
break;
}
}
nxt[0][i] = nxtt;
}
for(int i = 1 ; i < 20 ; i++) {
for(int j = 0 ; j < n ; j++) {
if(nxt[i - 1][j] != -1)
nxt[i][j] = nxt[i - 1][nxt[i - 1][j]];
}
}
int q;
cin >> q;
while(q--) {
int l, r;
cin >> l >> r;
l -= 1;
int ans = 0;
for(int i = 19 ; i >= 0 ; i--) {
if(nxt[i][l] <= r && nxt[i][l] != -1) {
ans += (1ll << i);
l = nxt[i][l];
}
}
ans += (l < r);
cout << ans << endl;
}
return 0 ;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
34896 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
1116 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
3 ms |
1116 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
46 ms |
36436 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
45 ms |
34896 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |