| # | 제출 시각 | 아이디 | 문제 | 언어 | 결과 | 실행 시간 | 메모리 |
|---|---|---|---|---|---|---|---|
| 1321207 | mirasm | 죄수들의 도전 (IOI22_prison) | C++20 | 2 ms | 1080 KiB |
#include "prison.h"
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>> devise_strategy(int n) {
int bl = sqrt(n) + 1;
auto get = [&] (int x) {
return (x - 1) / bl + 1;
};
vector<vector<int>> ans(get(n) + bl + 1, vector<int>(n + 1));
ans[0][0] = 0;
for (int i = 1; i <= n; i++) {
ans[0][i] = get(i);
}
for (int i = 1; i <= get(n); i++) {
ans[i][0] = 1;
for (int j = 1; j <= n; j++) {
if (get(j) < i) {
ans[i][j] = -2;
}
else if (get(j) > i) {
ans[i][j] = -1;
}
else {
ans[i][j] = get(n) + (j - 1) - (get(j) - 1) * bl + 1;
}
}
}
for (int i = get(n) + 1; i <= get(n) + bl; i++) {
ans[i][0] = 0;
for (int j = 1; j <= n; j++) {
int pos = (j - 1) - (get(j) - 1) * bl;
if (i - get(n) - 1 <= pos) {
ans[i][j] = -2;
}
else {
ans[i][j] = -1;
}
}
}
return ans;
}
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