結果
問題 |
No.3018 目隠し宝探し
|
ユーザー |
|
提出日時 | 2025-01-25 15:19:51 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 82 ms / 2,000 ms |
コード長 | 2,259 bytes |
コンパイル時間 | 4,468 ms |
コンパイル使用メモリ | 256,704 KB |
実行使用メモリ | 25,972 KB |
平均クエリ数 | 2.73 |
最終ジャッジ日時 | 2025-01-25 23:44:19 |
合計ジャッジ時間 | 7,744 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge7 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 21 |
コンパイルメッセージ
main.cpp: In function ‘int main()’: main.cpp:50:33: warning: ‘second_x’ may be used uninitialized [-Wmaybe-uninitialized] 50 | cout << "? " << second_x << " " << second_y << endl; | ^~~ main.cpp:42:9: note: ‘second_x’ was declared here 42 | int second_x,second_y; | ^~~~~~~~ main.cpp:50:40: warning: ‘second_y’ may be used uninitialized [-Wmaybe-uninitialized] 50 | cout << "? " << second_x << " " << second_y << endl; | ^~~~~~~~ main.cpp:42:18: note: ‘second_y’ was declared here 42 | int second_x,second_y; | ^~~~~~~~
ソースコード
#include <bits/stdc++.h> #include <atcoder/all> using namespace std; using namespace atcoder; #define rep(i, n) for (int i = 0; i < (int)(n); i++) template <typename T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return true; } return false; } template <typename T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return true; } return false; } int main() { double H,W; cin >> H >> W; if(H == 1 && W == 1){ cout << "! 1 1" << endl; return 0; } cout << "? 1 1" << endl; double a; cin >> a; if(a == 0)cout << "! 1 1" << endl; // a = sqrt(a); vector<vector<bool>> res(H,vector<bool>(W,true)); int counter = H * W; rep(i,H)rep(j,W){ if(i*i+j*j - a != 0){ res[i][j] = false; counter--; } } if(counter == 1){ rep(i,H)rep(j,W){ if(res[i][j]){ cout << "! " << i+1 << " " << j+1 << endl; return 0; } } } int second_x,second_y; rep(i,H)rep(j,W){ if(res[i][j]){ second_x = i + 1; second_y = j + 1; } } cout << "? " << second_x << " " << second_y << endl; cin >> a; if(a == 0)cout << "! " << second_x << " " << second_y << endl; // a = sqrt(a); rep(i,H)rep(j,W){ if(((second_x-i-1)*(second_x-i-1) + (second_y-j-1) * (second_y-j-1) - a != 0) && (res[i][j] == true)){ res[i][j] = false; counter--; } } if(counter == 1){ // cout << counter << endl; rep(i,H)rep(j,W){ if(res[i][j]){ cout << "! " << i+1 << " " << j+1 << endl; return 0; } } }else{ vector<pair<int,int>> candidateList; rep(i,H)rep(j,W){ if(res[i][j])candidateList.push_back({i+1,j+1}); } // cout << candidateList.size() << endl; cout << "? " << candidateList[0].first << " " << candidateList[0].second << endl; cin >> a; if(a)cout << "! " << candidateList[1].first << " " << candidateList[1].second << endl; else cout << "! " << candidateList[0].first << " " << candidateList[0].second << endl; } }