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Submission #1002499

# Submission time Handle Problem Language Result Execution time Memory
1002499 2024-06-19T15:26:48 Z vjudge1 Robots (APIO13_robots) C++17
100 / 100
 1234 ms 108664 KB 
#include<iostream>
#include<cmath>
#include<algorithm>
#include<vector>
#include<set>
#include<queue>
#include<deque>


using namespace std;

#define len(x) (int)x.size()
#define all(x) (x).begin() , (x).end()
#define Bekabot ios_base::sync_with_stdio(NULL);cin.tie(0);cout.tie(0);
#define pb push_back
#define pii pair<int , int>
#define F first
#define S second
#define fopen(s) freopen(s".in","r",stdin);freopen(s".out","w",stdout)

const int N = 1e5 + 78 , M = 1e9 + 7 , inf = 1e9;

int h , w , n;
int ans[10][10][505][505];
int dp[505][505];
int dx[] = {1 , 0 , -1 , 0} , dy[] = {0 , 1 , 0 , -1};
char a[505][505];
vector<pii> g[505][505];
pii id[10];
pii s[505][505][5];
bool p(int x , int y){
	if(1 <= x and x <= h and 1 <= y and y <= w and a[x][y] != 'x')return 1;
	return 0;
}
pii fnd(int x , int y , int t){
	if(s[x][y][t].F and s[x][y][t].S)return s[x][y][t];
	s[x][y][t] = {-inf , -inf};
	int tt = t;
	if(a[x][y] == 'A'){
		tt = (tt + 1) % 4;
	}
	else if(a[x][y] == 'C'){
		tt = (tt + 3) % 4;
	}
	int x1 = x + dx[tt] , y1 = y + dy[tt];
	if(p(x1 , y1))return s[x][y][t] = fnd(x1 , y1 , tt);
	else return s[x][y][t] = {x , y};
}
void build(){
	for(int i = 1 ; i <= h ; i++){
		for(int j = 1 ; j <= w ; j++){
			if(a[i][j] == 'x')continue;
			for(int t = 0 ; t <= 3 ; t++){
				pii aa = fnd(i , j , t);
				if(a[i][j] != 'x' and aa.F > 0)g[i][j].pb(aa);
			}
		}
	}
}
void skibidi_dop_dop_dop_yes_yes(){
	cin >> n >> w >> h;
	for(int i = 1 ; i <= h ; i++){
		for(int j = 1 ; j <= w ; j++){
			cin >> a[i][j];
			if(a[i][j] >= '1' and a[i][j] <= '9')id[a[i][j] - '0'] = {i , j};
		}
	}
	build();
	for(int l = 1 ; l <= n ; l++){
		for(int r = 1 ; r <= n ; r++){
			for(int i = 1 ; i <= h ; i++){
				for(int j = 1 ; j <= w ; j++){
					ans[l][r][i][j] = inf;
				}
			}
		}
	}
	for(int i = 1 ; i <= n ; i++){
		ans[i][i][id[i].F][id[i].S] = 0;
	}
	for(int ll = 1 ; ll <= n ; ll++){
		for(int l = 1 ; l + ll - 1 <= n ; l++){
			int r = l + ll - 1;
			set<pair<int , pii>> st;
			for(int i = 1 ; i <= h ; i++){
				for(int j = 1 ; j <= w ; j++){
					for(int md = l ; md < r ; md++){
						ans[l][r][i][j] = min(ans[l][r][i][j] , ans[l][md][i][j] + ans[md + 1][r][i][j]);
					}
					if(ans[l][r][i][j] != inf)st.insert({ans[l][r][i][j] , {i , j}});
				}
			}
			while(len(st)){
				auto v = *st.begin();
				st.erase(st.begin());
				for(auto it : g[v.S.F][v.S.S]){
					if(ans[l][r][it.F][it.S] > ans[l][r][v.S.F][v.S.S] + 1){
						st.erase({ans[l][r][it.F][it.S] , {it.F , it.S}});
						ans[l][r][it.F][it.S] = ans[l][r][v.S.F][v.S.S] + 1;
						st.insert({ans[l][r][it.F][it.S] , {it.F , it.S}});
					}
				}
			}
		}
	}
	int mx = inf;
	for(int i = 1 ; i <= h ; i++)for(int j = 1 ; j <= w ; j++)mx = min(mx , ans[1][n][i][j]);
	if(mx < inf)cout << mx;
	else cout << -1;
}

signed main(){
	int t = 1;
	Bekabot
	while(t--)skibidi_dop_dop_dop_yes_yes();
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6488 KB Output is correct
2 Correct 3 ms 6492 KB Output is correct
3 Correct 4 ms 6496 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6488 KB Output is correct
2 Correct 3 ms 6492 KB Output is correct
3 Correct 4 ms 6496 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 4 ms 6488 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6488 KB Output is correct
2 Correct 3 ms 6492 KB Output is correct
3 Correct 4 ms 6496 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 4 ms 6488 KB Output is correct
11 Correct 112 ms 62036 KB Output is correct
12 Correct 10 ms 12892 KB Output is correct
13 Correct 28 ms 42576 KB Output is correct
14 Correct 375 ms 63060 KB Output is correct
15 Correct 67 ms 61320 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 6488 KB Output is correct
2 Correct 3 ms 6492 KB Output is correct
3 Correct 4 ms 6496 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 3 ms 6492 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 4 ms 6488 KB Output is correct
11 Correct 112 ms 62036 KB Output is correct
12 Correct 10 ms 12892 KB Output is correct
13 Correct 28 ms 42576 KB Output is correct
14 Correct 375 ms 63060 KB Output is correct
15 Correct 67 ms 61320 KB Output is correct
16 Correct 98 ms 108664 KB Output is correct
17 Correct 1234 ms 108412 KB Output is correct
18 Correct 132 ms 104380 KB Output is correct
19 Correct 119 ms 102992 KB Output is correct
20 Correct 619 ms 105808 KB Output is correct