#include <iostream>
#include <vector>
#include <chrono>
#include <random>
#include <cassert>
#include "popa.h"
#include <stack>
std::mt19937 rng((int) std::chrono::steady_clock::now().time_since_epoch().count());
// query(a, b, c, d) gcd[a, b] == gcd[c, d]
const int ms = 1010;
int liml[ms], limr[ms];
int solve(int l, int r, int* Left, int* Right) {
if(l >= r) {
return -1;
}
for(int i = l; i < r; i++) {
if(liml[i] <= l && r <= limr[i]) {
Left[i] = solve(l, i, Left, Right);
Right[i] = solve(i+1, r, Left, Right);
return i;
}
}
assert(0);
}
int solve(int n, int *l, int *r) {
for(int i = 0; i < n; i++) {
l[i] = r[i] = -1;
}
std::vector<int> st;
for(int i = 0; i < n; i++) {
while(!st.empty() && query(st.back(), st.back(), st.back(), i) != 0) {
// [st.back(), i] isn't good for st.back
limr[st.back()] = i;
st.pop_back();
}
liml[i] = st.empty() ? 0 : st.back() + 1;
}
assert(!st.empty());
for(auto val : st) {
limr[val] = n;
}
return solve(0, n, l, r);
}
/*int main() {
std::ios_base::sync_with_stdio(false); std::cin.tie(NULL);
}*/
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
492 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
492 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Runtime error |
1 ms |
492 KB |
Execution killed with signal 6 |
2 |
Halted |
0 ms |
0 KB |
- |