Submission #1776827
Source Code Expand
// Closed Rooms // * frank_c1 // * 2017 / 11 / 14 #include <bits/stdc++.h> using namespace std; typedef pair<int, int> pii; const int maxn = 805; char s[maxn][maxn]; pii q[maxn * maxn]; int ds[maxn][maxn]; int l, r; inline int iabs(int x) { return x >= 0 ? x : -x; } int main() { int n, m, K; scanf("%d%d%d", &n, &m, &K); for (int i = 1; i <= n; ++i) scanf("%s", s[i] + 1); memset(ds, -1, sizeof(ds)); l = 1; r = 0; for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) if (s[i][j] == 'S') { q[++r] = make_pair(i, j); ds[i][j] = 0; } for (; l <= r; ) { pii u = q[l++]; int x = u.first, y = u.second; if (ds[x][y] >= K) continue; for (int dx = -1; dx <= 1; ++dx) for (int dy = -1; dy <= 1; ++dy) if (iabs(dx) + iabs(dy) == 1) { int nx = x + dx, ny = y + dy; if (ds[nx][ny] < 0 && s[nx][ny] != '#') { ds[nx][ny] = ds[x][y] + 1; q[++r] = make_pair(nx, ny); } } } l = 1; r = 0; for (int i = 1; i <= n; ++i) for (int j = 1; j <= m; ++j) if (ds[i][j] >= 0) { ds[i][j] = 0; q[++r] = make_pair(i, j); } for (; l <= r; ) { pii u = q[l++]; int x = u.first, y = u.second; for (int dx = -1; dx <= 1; ++dx) for (int dy = -1; dy <= 1; ++dy) if (iabs(dx) + iabs(dy) == 1) { int nx = x + dx, ny = y + dy; if (ds[nx][ny] < 0) { ds[nx][ny] = ds[x][y] + 1; q[++r] = make_pair(nx, ny); } } } int mi = (int)(1e9); for (int i = 1; i <= n; ++i) mi = min(mi, min(ds[i][1], ds[i][m])); for (int j = 1; j <= m; ++j) mi = min(mi, min(ds[1][j], ds[n][j])); printf("%d\n", (mi + K - 1) / K + 1); return 0; }
Submission Info
Submission Time | |
---|---|
Task | C - Closed Rooms |
User | frank_c1 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1624 Byte |
Status | RE |
Exec Time | 134 ms |
Memory | 8448 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:21:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &n, &m, &K); ^ ./Main.cpp:22:52: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= n; ++i) scanf("%s", s[i] + 1); ^
Judge Result
Set Name | Sample | All | ||||||||
---|---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 700 | ||||||||
Status |
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Set Name | Test Cases |
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Sample | sample1.txt, sample2.txt, sample3.txt |
All | sample1.txt, sample2.txt, sample3.txt, in1.txt, in10.txt, in11.txt, in12.txt, in13.txt, in14.txt, in15.txt, in16.txt, in17.txt, in18.txt, in19.txt, in2.txt, in20.txt, in21.txt, in22.txt, in23.txt, in24.txt, in25.txt, in26.txt, in27.txt, in28.txt, in29.txt, in3.txt, in30.txt, in31.txt, in32.txt, in33.txt, in34.txt, in35.txt, in36.txt, in37.txt, in38.txt, in39.txt, in4.txt, in40.txt, in5.txt, in6.txt, in7.txt, in8.txt, in9.txt, sample1.txt, sample2.txt, sample3.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
in1.txt | RE | 112 ms | 8448 KB |
in10.txt | RE | 108 ms | 8448 KB |
in11.txt | AC | 18 ms | 8448 KB |
in12.txt | AC | 18 ms | 8448 KB |
in13.txt | AC | 18 ms | 8448 KB |
in14.txt | RE | 114 ms | 8448 KB |
in15.txt | AC | 18 ms | 8448 KB |
in16.txt | AC | 18 ms | 8448 KB |
in17.txt | RE | 115 ms | 8448 KB |
in18.txt | AC | 19 ms | 8448 KB |
in19.txt | RE | 104 ms | 6400 KB |
in2.txt | RE | 112 ms | 8448 KB |
in20.txt | RE | 111 ms | 8448 KB |
in21.txt | AC | 16 ms | 8448 KB |
in22.txt | AC | 16 ms | 8448 KB |
in23.txt | AC | 19 ms | 8448 KB |
in24.txt | AC | 18 ms | 8448 KB |
in25.txt | AC | 18 ms | 8448 KB |
in26.txt | RE | 115 ms | 8448 KB |
in27.txt | RE | 104 ms | 6400 KB |
in28.txt | RE | 115 ms | 8448 KB |
in29.txt | RE | 134 ms | 8448 KB |
in3.txt | AC | 18 ms | 8448 KB |
in30.txt | RE | 116 ms | 8448 KB |
in31.txt | RE | 114 ms | 8448 KB |
in32.txt | RE | 113 ms | 8448 KB |
in33.txt | RE | 116 ms | 8448 KB |
in34.txt | AC | 33 ms | 8448 KB |
in35.txt | RE | 114 ms | 8448 KB |
in36.txt | AC | 19 ms | 8448 KB |
in37.txt | AC | 18 ms | 8448 KB |
in38.txt | AC | 18 ms | 8448 KB |
in39.txt | AC | 18 ms | 8448 KB |
in4.txt | RE | 113 ms | 8448 KB |
in40.txt | AC | 18 ms | 8448 KB |
in5.txt | AC | 19 ms | 8448 KB |
in6.txt | AC | 18 ms | 8448 KB |
in7.txt | AC | 18 ms | 8448 KB |
in8.txt | RE | 114 ms | 8448 KB |
in9.txt | AC | 18 ms | 8448 KB |
sample1.txt | RE | 100 ms | 6400 KB |
sample2.txt | AC | 16 ms | 8448 KB |
sample3.txt | AC | 16 ms | 8448 KB |