結果
問題 | No.1306 Exactly 2 Digits |
ユーザー |
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提出日時 | 2020-12-03 02:06:02 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 169 ms / 2,000 ms |
コード長 | 2,311 bytes |
コンパイル時間 | 3,765 ms |
コンパイル使用メモリ | 211,212 KB |
最終ジャッジ日時 | 2025-01-16 14:06:20 |
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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ファイルパターン | 結果 |
---|---|
other | AC * 123 |
ソースコード
#include <bits/stdc++.h>using namespace std;int main() {int n;cin >> n;int m = n * (n - 1);vector<int> dx(m), dy(m);for (int i = 1; i < m; i++) {cout << "? " << i + 1 << " " << 1 << endl;cin >> dx.at(i) >> dy.at(i);}int dxmax = *max_element(dx.begin(), dx.end()),dymax = *max_element(dy.begin(), dy.end()),dxmin = *min_element(dx.begin(), dx.end()),dymin = *min_element(dy.begin(), dy.end());if (dxmax - dxmin < n - 1) {swap(dxmax, dymax);swap(dxmin, dymin);for (int i = 0; i < m; i++) {swap(dx.at(i), dy.at(i));}}assert(dxmax - dxmin == n - 1);assert(dymax - dymin == n - 2);map<pair<int, int>, bool> twoway;vector index(n, vector(n - 1, -1));for (int i = 0; i < m; i++) {if (index.at(dx.at(i) - dxmin).at(dy.at(i) - dymin) != -1) {twoway[{dx.at(i), dy.at(i)}] = true;swap(dx.at(i), dy.at(i));twoway[{dx.at(i), dy.at(i)}] = true;}index.at(dx.at(i) - dxmin).at(dy.at(i) - dymin) = i;}int base = -1;for (int i = 0; i < m; i++) {if (dxmin != dymin and dx.at(i) == dxmin and dy.at(i) == dymin) {base = i;break;}if (dxmin == dymin and dx.at(i) == dxmax and dy.at(i) == dymax) {base = i;break;}}vector<bool> visited(m);for (int i = 0; i < m; i++) {if (visited.at(i)) continue;if (not twoway[{dx.at(i), dy.at(i)}]) continue;int co_i = index.at(dy.at(i) - dxmin).at(dx.at(i) - dymin);cout << "? " << i + 1 << " " << base + 1 << endl;int dxbase, dybase;cin >> dxbase >> dybase;if (dx.at(i) != dxbase + dx.at(base)) {swap(dx.at(i), dy.at(i));}if (dx.at(i) != dxbase + dx.at(base)) {swap(dxbase, dybase);}if (dx.at(i) != dxbase + dx.at(base)) {swap(dx.at(i), dy.at(i));}dx.at(co_i) = dy.at(i);dy.at(co_i) = dx.at(i);visited.at(co_i) = true;}cout << "!";for (int i = 0; i < m; i++) {cout << " " << n * (dy.at(i) - dymin) + (dx.at(i) - dxmin) + n;}cout << endl;}