結果
| 問題 |
No.3199 Key-Door Grid
|
| コンテスト | |
| ユーザー |
 ococonomy1
|
| 提出日時 | 2025-07-11 22:10:23 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 142 ms / 3,000 ms |
| コード長 | 5,440 bytes |
| コンパイル時間 | 2,379 ms |
| コンパイル使用メモリ | 216,136 KB |
| 実行使用メモリ | 25,472 KB |
| 最終ジャッジ日時 | 2025-07-11 22:10:29 |
| 合計ジャッジ時間 | 5,976 ms |
|
ジャッジサーバーID （参考情報） |
judge1 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 37 |
コンパイルメッセージ
main.cpp: In function ‘void solve()’:
main.cpp:115:12: warning: ‘sx’ may be used uninitialized [-Wmaybe-uninitialized]
115 | dist[sx][sy][0] = 0;
| ^
main.cpp:101:9: note: ‘sx’ was declared here
101 | int sx,sy,gx,gy;
| ^~
main.cpp:125:20: warning: ‘gy’ may be used uninitialized [-Wmaybe-uninitialized]
125 | if(x == gx && y == gy){
| ~~~~~~~~^~~~~~~~~~
main.cpp:101:18: note: ‘gy’ was declared here
101 | int sx,sy,gx,gy;
| ^~
main.cpp:125:9: warning: ‘gx’ may be used uninitialized [-Wmaybe-uninitialized]
125 | if(x == gx && y == gy){
| ^~
main.cpp:101:15: note: ‘gx’ was declared here
101 | int sx,sy,gx,gy;
| ^~
main.cpp:115:16: warning: ‘sy’ may be used uninitialized [-Wmaybe-uninitialized]
115 | dist[sx][sy][0] = 0;
| ^
main.cpp:101:12: note: ‘sy’ was declared here
101 | int sx,sy,gx,gy;
| ^~
ソースコード
//#pragma GCC target("avx2")
//#pragma GCC optimize("O3")
//#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int,int>;
using pll = pair<ll,ll>;
using pli = pair<ll,int>;
#define AMARI 998244353
//#define AMARI 1000000007
#define el '\n'
#define El '\n'
#define YESNO(x) ((x) ? "Yes" : "No")
#define YES YESNO(true)
#define NO YESNO(false)
#define REV_PRIORITY_QUEUE(tp) priority_queue<tp,vector<tp>,greater<tp>>
#define EXIT_ANS(x) {cout << (x) << '\n'; return;}
template <typename T> void inline SORT(vector<T> &v){sort(v.begin(),v.end()); return;}
template <typename T> void inline VEC_UNIQ(vector<T> &v){sort(v.begin(),v.end()); v.erase(unique(v.begin(),v.end()),v.end()); return;}
template <typename T> T inline MAX(vector<T> &v){return *max_element(v.begin(),v.end());}
template <typename T> T inline MIN(vector<T> &v){return *min_element(v.begin(),v.end());}
template <typename T> T inline SUM(vector<T> &v){T ans = 0; for(int i = 0; i < (int)v.size(); i++)ans += v[i]; return ans;}
template <typename T> void inline DEC(vector<T> &v){for(int i = 0; i < (int)v.size(); i++)v[i]--; return;}
template <typename T> void inline INC(vector<T> &v){for(int i = 0; i < (int)v.size(); i++)v[i]++; return;}
void inline TEST(void){cerr << "TEST" << endl; return;}
template <typename T> bool inline chmin(T &x,T y){
if(x > y){
x = y;
return true;
}
return false;
}
template <typename T> bool inline chmax(T &x,T y){
if(x < y){
x = y;
return true;
}
return false;
}
template <typename T = long long> vector<T> inline get_vec(int n){
vector<T> ans(n);
for(int i = 0; i < n; i++)cin >> ans[i];
return ans;
}
template <typename T> void inline print_vec(vector<T> &vec,bool kaigyou = false){
int n = (int)vec.size();
for(int i = 0; i < n; i++){
cout << vec[i];
if(kaigyou || i == n - 1)cout << '\n';
else cout << ' ';
}
if(!n)cout << '\n';
return;
}
template <typename T> void inline debug_vec(vector<T> &vec,bool kaigyou = false){
int n = (int)vec.size();
for(int i = 0; i < n; i++){
cerr << vec[i];
if(kaigyou || i == n - 1)cerr << '\n';
else cerr << ' ';
}
if(!n)cerr << '\n';
return;
}
vector<vector<int>> inline get_graph(int n,int m = -1,bool direct = false){
if(m == -1)m = n - 1;
vector<vector<int>> g(n);
while(m--){
int u,v;
cin >> u >> v;
u--; v--;
g[u].push_back(v);
if(!direct)g[v].push_back(u);
}
return g;
}
vector<int> make_inv(vector<int> p){
int n = (int)p.size();
vector<int> ans(n);
for(int i = 0; i < n; i++)ans[p[i]] = i;
return ans;
}
#define MULTI_TEST_CASE false
void solve(void){
//問題を見たらまず「この問題設定から言えること」をいっぱい言う
//よりシンプルな問題に言い換えられたら、言い換えた先の問題を自然言語ではっきりと書く
//複数の解法のアイデアを思いついた時は全部メモしておく
//g++ -D_GLIBCXX_DEBUG -Wall -O2 e.cpp -o o
//[i][j][l] = (i,j) にいて、鍵 l を持っていることが可能か
int h,w,m;
cin >> h >> w >> m;
m = 10;
vector<string> s = get_vec<string>(h);
int sx,sy,gx,gy;
for(int i = 0; i < h; i++){
for(int j = 0; j < w; j++){
if(s[i][j] == 'S'){
sx = i; sy = j;
}
if(s[i][j] == 'G'){
gx = i; gy = j;
}
}
}
vector<vector<vector<int>>> dist(h,vector<vector<int>>(w,vector<int>(m + 2,-1)));
dist[sx][sy][0] = 0;
queue<tuple<int,int,int>> que;
que.push(tuple(sx,sy,0));
vector<int> dx = {1,0,-1,0};
vector<int> dy = {0,-1,0,1};
while(!que.empty()){
int x,y,key;
tie(x,y,key) = que.front(); que.pop();
if(x == gx && y == gy){
EXIT_ANS(dist[gx][gy][key]);
}
for(int i = 0; i < 4; i++){
int xx = x + dx[i],yy = y + dy[i];
if(xx < 0 || xx >= h)continue;
if(yy < 0 || yy >= w)continue;
if(s[xx][yy] == '#')continue;
if(s[xx][yy] == '.' || s[xx][yy] == 'G' || s[xx][yy] == 'S'){
if(dist[xx][yy][key] != -1)continue;
dist[xx][yy][key] = dist[x][y][key] + 1;
que.push(tuple(xx,yy,key));
continue;
}
if(s[xx][yy] >= '1' && s[xx][yy] <= '9'){
if(dist[xx][yy][s[xx][yy] - '0'] != -1)continue;
dist[xx][yy][s[xx][yy] - '0'] = dist[x][y][key] + 1;
que.push(tuple(xx,yy,s[xx][yy] - '0'));
continue;
}
if(s[xx][yy] >= 'a' && s[xx][yy] <= 'i'){
if(s[xx][yy] - 'a' != key - 1){
continue;
}
if(dist[xx][yy][key] != -1)continue;
dist[xx][yy][key] = dist[x][y][key] + 1;
que.push(tuple(xx,yy,key));
continue;
}
assert(0);
}
}
cout << -1 << el;
return;
}
void calc(void){
return;
}
signed main(void){
cin.tie(nullptr);
ios::sync_with_stdio(false);
calc();
int t = 1;
if(MULTI_TEST_CASE)cin >> t;
while(t--){
solve();
}
return 0;
}