Submission #1607742
Source Code Expand
#include <bits/stdc++.h> using namespace std; const int N = 8; bool row[N], col[N], dpos[2 * N - 1], dneg[2 * N - 1]; bool used[N][N]; bool ok = false, no = false; void printBoard(void) { for (int i = 0; i < N; i++) { for (int j = 0; j < N; j++) { cout << (used[i][j] ? 'Q' : '.'); } cout << endl; } } void dfs(int i) { if (i == N && !ok) { printBoard(); ok = true; return; } if (row[i]) { dfs(i + 1); } else { for (int j = 0; j < N; j++) { if (col[j] || dpos[i + j] || dneg[N - 1 + i - j]) continue; row[i] = col[j] = dpos[i + j] = dneg[N - 1 + i - j] = true; used[i][j] = true; dfs(i + 1); used[i][j] = false; row[i] = col[j] = dpos[i + j] = dneg[N - 1 + i - j] = false; } } } int main(void) { for (int i = 0; i < N; i++) { string s; cin >> s; for (int j = 0; j < N; j++) { if (s[j] == '.') continue; if (row[i] || col[j] || dpos[i + j] || dneg[N - 1 + i - j]) no = true; used[i][j] = row[i] = col[j] = dpos[i + j] = dneg[N - 1 + i - j] = true; } } if (no) { cout << "No Answer\n"; } else { dfs(0); if (!ok) cout << "No Answer\n"; } return 0; }
Submission Info
Submission Time | |
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Task | C - パズルのお手伝い |
User | legosuke |
Language | C++14 (GCC 5.4.1) |
Score | 100 |
Code Size | 1270 Byte |
Status | AC |
Exec Time | 1 ms |
Memory | 256 KB |
Judge Result
Set Name | All | ||
---|---|---|---|
Score / Max Score | 100 / 100 | ||
Status |
|
Set Name | Test Cases |
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All | 00_sample1.txt, 00_sample2.txt, 01_rnd_00.txt, 01_rnd_01.txt, 01_rnd_02.txt, 01_rnd_03.txt, 01_rnd_04.txt, 01_rnd_05.txt, 01_rnd_06.txt, 01_rnd_07.txt, 01_rnd_08.txt, 01_rnd_09.txt, 01_rnd_10.txt, 01_rnd_11.txt, 01_rnd_12.txt, 01_rnd_13.txt, 01_rnd_14.txt, 01_rnd_15.txt, 01_rnd_16.txt, 01_rnd_17.txt, 01_rnd_18.txt, 01_rnd_19.txt, 01_rnd_20.txt, 01_rnd_21.txt, 01_rnd_22.txt, 01_rnd_23.txt, 01_rnd_24.txt, 01_rnd_25.txt, 01_rnd_26.txt, 01_rnd_27.txt, 01_rnd_28.txt, 01_rnd_29.txt, 01_rnd_30.txt, 01_rnd_31.txt, 01_rnd_32.txt, 01_rnd_33.txt, 01_rnd_34.txt, 01_rnd_35.txt, 01_rnd_36.txt, 01_rnd_37.txt, 01_rnd_38.txt, 01_rnd_39.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_sample1.txt | AC | 1 ms | 256 KB |
00_sample2.txt | AC | 1 ms | 256 KB |
01_rnd_00.txt | AC | 1 ms | 256 KB |
01_rnd_01.txt | AC | 1 ms | 256 KB |
01_rnd_02.txt | AC | 1 ms | 256 KB |
01_rnd_03.txt | AC | 1 ms | 256 KB |
01_rnd_04.txt | AC | 1 ms | 256 KB |
01_rnd_05.txt | AC | 1 ms | 256 KB |
01_rnd_06.txt | AC | 1 ms | 256 KB |
01_rnd_07.txt | AC | 1 ms | 256 KB |
01_rnd_08.txt | AC | 1 ms | 256 KB |
01_rnd_09.txt | AC | 1 ms | 256 KB |
01_rnd_10.txt | AC | 1 ms | 256 KB |
01_rnd_11.txt | AC | 1 ms | 256 KB |
01_rnd_12.txt | AC | 1 ms | 256 KB |
01_rnd_13.txt | AC | 1 ms | 256 KB |
01_rnd_14.txt | AC | 1 ms | 256 KB |
01_rnd_15.txt | AC | 1 ms | 256 KB |
01_rnd_16.txt | AC | 1 ms | 256 KB |
01_rnd_17.txt | AC | 1 ms | 256 KB |
01_rnd_18.txt | AC | 1 ms | 256 KB |
01_rnd_19.txt | AC | 1 ms | 256 KB |
01_rnd_20.txt | AC | 1 ms | 256 KB |
01_rnd_21.txt | AC | 1 ms | 256 KB |
01_rnd_22.txt | AC | 1 ms | 256 KB |
01_rnd_23.txt | AC | 1 ms | 256 KB |
01_rnd_24.txt | AC | 1 ms | 256 KB |
01_rnd_25.txt | AC | 1 ms | 256 KB |
01_rnd_26.txt | AC | 1 ms | 256 KB |
01_rnd_27.txt | AC | 1 ms | 256 KB |
01_rnd_28.txt | AC | 1 ms | 256 KB |
01_rnd_29.txt | AC | 1 ms | 256 KB |
01_rnd_30.txt | AC | 1 ms | 256 KB |
01_rnd_31.txt | AC | 1 ms | 256 KB |
01_rnd_32.txt | AC | 1 ms | 256 KB |
01_rnd_33.txt | AC | 1 ms | 256 KB |
01_rnd_34.txt | AC | 1 ms | 256 KB |
01_rnd_35.txt | AC | 1 ms | 256 KB |
01_rnd_36.txt | AC | 1 ms | 256 KB |
01_rnd_37.txt | AC | 1 ms | 256 KB |
01_rnd_38.txt | AC | 1 ms | 256 KB |
01_rnd_39.txt | AC | 1 ms | 256 KB |