oj.uz

Submission #1003064

# Submission time Handle Problem Language Result Execution time Memory
1003064 2024-06-20T04:54:46 Z vjudge1 Robots (APIO13_robots) C++17
60 / 100
 450 ms 163840 KB 
/* author : Dinmukhammed ^_^ */

#include <map>
#include <set>
#include <unordered_set>
#include <list>
#include <cmath>
#include <ctime>                         																											
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <cassert>
#include <iomanip>
#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <fstream>
#include <unordered_map>
#include <complex>

#define ll long long
#define ld long double
#define all(x) (x).begin() , (x).end()
#define F first
#define S second
#define sz size()
#define turbo ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define pb push_back
#define ins insert
#define rall(x) (x).rbegin() , (x).rend()
// #define int ll




// #ifdef cp_editor
// #else
// freopen(".in" , "r" , stdin);
// freopen(".out" , "w" , stdout);
// #endif


// #pragma GCC optimize("O3", "unroll-loops")
// #pragma GCC target("avx2", "bmi", "bmi2", "lzcnt", "popcnt")

using namespace std;


const ll inf = 1e18+3;
const int MOD = 1e9+7;
const long double eps = 1e-11;

ll rnd(){
	ll x = rand() << 15;
	return rand() ^ x;
}

ll binpow(ll a , ll b){
    if (!b) return 1;
    if (b % 2){
        return (a * binpow(a , b - 1)) % MOD;
    }
    else{
        ll val = binpow(a , b / 2);
        return (val * val) % MOD;
    }
}



const int N = 500 + 3;
const int NN = 2e6+3;
const int N1 = 2000+3;
const int lg = 22;


const int dx[] = {1 , 0 , -1 , 0};
const int dy[] = {0 , 1 , 0 , -1};


int n , m , coln;

char a[N][N];

int id = 0;

pair <int , int> used[N][N][4];

pair <int , int> find(int x , int y , int k){
	if(used[x][y][k].F) return used[x][y][k];
	used[x][y][k] = {-1 , -1};
	int k1 = k;
	if(a[x][y] == 'C') k = (k - 1 + 4) % 4;
	if(a[x][y] == 'A') k = (k + 1) % 4;
	if(a[x + dx[k]][y + dy[k]] == 'x' || (x + dx[k] < 1 || y + dy[k] < 1 || x + dx[k] > n || y + dy[k] > m)) return used[x][y][k1] = {x , y};
	return used[x][y][k1] = find(x + dx[k] , y + dy[k] , k);
}

vector <pair <int , int>> g[N][N];

void build(){
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			if(a[i][j] == 'x') continue;
			for(int k = 0; k < 4; k++){
				pair <int , int> p = find(i , j , k);
				if(p.F != -1) g[i][j].pb(p);
			}
		}
	}
}

void code(){
	cin >> coln >> m >> n;
	vector <pair <int , pair <int , int>>> rbt;
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			cin >> a[i][j];
			if(a[i][j] >= '1' && a[i][j] <= '9') rbt.pb({a[i][j] - '0' , {i , j}});
		}
	}
	build();
	ll dp[coln + 1][coln + 1][n + 1][m + 1];
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			for(int l = 1; l <= coln; l++){
				for(int r = l; r <= coln; r++) dp[l][r][i][j] = inf;
			}
		}
	}
	for(auto [ind , cor] : rbt){
		dp[ind][ind][cor.F][cor.S] = 0;
	}
	for(int sz1 = 1; sz1 <= coln; sz1++){
		for(int l = 1; l <= coln - sz1 + 1; l++){
			int r = l + sz1 - 1;
			set <pair <int , pair <int , int>>> st;
			for(int i = 1; i <= n; i++){
				for(int j = 1; j <= m; j++){
					for(int mid = l; mid < r; mid++){
						dp[l][r][i][j] = min(dp[l][r][i][j] , dp[l][mid][i][j] + dp[mid + 1][r][i][j]);
					}
					if(dp[l][r][i][j] != inf) st.ins({dp[l][r][i][j] , {i , j}});
				}
			}
			while(!st.empty()){
				int x , y;
				tie(x , y) = st.begin() -> S;
				st.erase(st.begin());
				for(auto to : g[x][y]){
					if(dp[l][r][to.F][to.S] > dp[l][r][x][y] + 1){
						st.erase({dp[l][r][to.F][to.S] , to});
						dp[l][r][to.F][to.S] = dp[l][r][x][y] + 1;
						st.ins({dp[l][r][to.F][to.S] , to});
					}
				}
			}
		}
	}
	ll mn = inf;
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			mn = min(mn , dp[1][coln][i][j]);
		}
	}
	// for(auto to : g[5][5]){
		// cout << to.F << " " << to.S << "\n";
	// }
	// cout << dp[3][4][1][7] << " ";
	if(mn == inf) cout << -1;
	else cout << mn;
}




signed main(/* oblys -> respa -> mezhdynarodka */){
	turbo
	// freopen("haircut.in" , "r" , stdin);
	// freopen("haircut.out" , "w" , stdout);
	int tt = 1;
	// cin >> tt;
	for(int _ = 1; _ <= tt; _++){
		code();
		// cout << "\n";
	}
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6232 KB Output is correct
2 Correct 2 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 3 ms 6236 KB Output is correct
5 Correct 3 ms 6236 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6232 KB Output is correct
2 Correct 2 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 3 ms 6236 KB Output is correct
5 Correct 3 ms 6236 KB Output is correct
6 Correct 3 ms 6236 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 3 ms 6404 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 2 ms 6236 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6232 KB Output is correct
2 Correct 2 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 3 ms 6236 KB Output is correct
5 Correct 3 ms 6236 KB Output is correct
6 Correct 3 ms 6236 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 3 ms 6404 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 2 ms 6236 KB Output is correct
11 Correct 167 ms 83024 KB Output is correct
12 Correct 13 ms 14424 KB Output is correct
13 Correct 47 ms 58132 KB Output is correct
14 Correct 450 ms 84064 KB Output is correct
15 Correct 95 ms 82264 KB Output is correct

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6232 KB Output is correct
2 Correct 2 ms 6236 KB Output is correct
3 Correct 2 ms 6236 KB Output is correct
4 Correct 3 ms 6236 KB Output is correct
5 Correct 3 ms 6236 KB Output is correct
6 Correct 3 ms 6236 KB Output is correct
7 Correct 3 ms 6236 KB Output is correct
8 Correct 3 ms 6404 KB Output is correct
9 Correct 3 ms 6236 KB Output is correct
10 Correct 2 ms 6236 KB Output is correct
11 Correct 167 ms 83024 KB Output is correct
12 Correct 13 ms 14424 KB Output is correct
13 Correct 47 ms 58132 KB Output is correct
14 Correct 450 ms 84064 KB Output is correct
15 Correct 95 ms 82264 KB Output is correct
16 Runtime error 104 ms 163840 KB Execution killed with signal 9
17 Halted 0 ms 0 KB -