oj.uz

Submission #241310

# Submission time Handle Problem Language Result Execution time Memory
241310 2020-06-23T19:36:21 Z dolphingarlic Robots (APIO13_robots) C++14
100 / 100
 966 ms 124536 KB 
#include<bits/stdc++.h>
#define F(i,x,y) for(int i=x; i<y; i++)
using namespace std;const int I=250000;int n,h,w;char g[500][500];pair<int,int>E[500][500][4];int dp[500][500][9][9];vector<pair<int,int>>q[I];bool inside(int x,int y){return(x>=0&&y>=0&&x<h&&y<w&&g[x][y] !='x');}int main(){ios_base::sync_with_stdio(0);cin.tie(0);cin>>n>>w>>h;memset(dp,0x3f,sizeof(dp));F(i,0,h)F(j,0,w){cin>>g[i][j];if(g[i][j]-'0'>0&&g[i][j]-'0'<10){dp[i][j][g[i][j]-'1'][g[i][j]-'1']=0;}}F(i,0,h)F(j,0,w)if(g[i][j] !='x'){F(k,0,4){pair<int,int>p={i,j};int d=(k+(g[i][j]=='A')*3+(g[i][j]=='C'))%4;while(1){if(d==0){if(inside(p.first-1,p.second)) p.first--;else break;}else if(d==1){if(inside(p.first,p.second+1)) p.second++;else break;}else if(d==2){if(inside(p.first+1,p.second)) p.first++;else break;}else{if(inside(p.first,p.second-1)) p.second--;else break;}if(g[p.first][p.second]=='A') d=(d+3) % 4;if(g[p.first][p.second]=='C') d=(d+1) % 4;}E[i][j][k]=p;}}F(r,0,n){F(k,0,n-r){int l=k+r;F(i,0,h)F(j,0,w) if(g[i][j] !='x'){F(d,k,l){dp[i][j][k][l]=min(dp[i][j][k][l],dp[i][j][k][d]+dp[i][j][d+1][l]);}}}F(k,0,n-r){int l=k+r;F(i,0,h)F(j,0,w) if(g[i][j] !='x'){if(dp[i][j][k][l]<=I) q[dp[i][j][k][l]].push_back({i,j});}F(i,0,I){for(pair<int,int>p : q[i]){int x,y;tie(x,y)=p;if(dp[x][y][k][l]==i){F(d,0,4){int nx,ny;tie(nx,ny)=E[x][y][d];if(dp[nx][ny][k][l]>dp[x][y][k][l]+1){q[dp[nx][ny][k][l]=dp[x][y][k][l]+1].push_back({nx,ny});}}}}q[i].clear();}}}int ans=INT_MAX;F(i,0,h)F(j,0,w)ans=min(ans,dp[i][j][0][n-1]);cout<<(ans>I?-1:ans);return 0;}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 85496 KB Output is correct
2 Correct 50 ms 85504 KB Output is correct
3 Correct 50 ms 85496 KB Output is correct
4 Correct 50 ms 85552 KB Output is correct
5 Correct 50 ms 85624 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 85496 KB Output is correct
2 Correct 50 ms 85504 KB Output is correct
3 Correct 50 ms 85496 KB Output is correct
4 Correct 50 ms 85552 KB Output is correct
5 Correct 50 ms 85624 KB Output is correct
6 Correct 50 ms 85496 KB Output is correct
7 Correct 50 ms 85496 KB Output is correct
8 Correct 51 ms 85500 KB Output is correct
9 Correct 50 ms 85496 KB Output is correct
10 Correct 50 ms 85504 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 85496 KB Output is correct
2 Correct 50 ms 85504 KB Output is correct
3 Correct 50 ms 85496 KB Output is correct
4 Correct 50 ms 85552 KB Output is correct
5 Correct 50 ms 85624 KB Output is correct
6 Correct 50 ms 85496 KB Output is correct
7 Correct 50 ms 85496 KB Output is correct
8 Correct 51 ms 85500 KB Output is correct
9 Correct 50 ms 85496 KB Output is correct
10 Correct 50 ms 85504 KB Output is correct
11 Correct 208 ms 92792 KB Output is correct
12 Correct 57 ms 89340 KB Output is correct
13 Correct 145 ms 89720 KB Output is correct
14 Correct 330 ms 97912 KB Output is correct
15 Correct 169 ms 89976 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 52 ms 85496 KB Output is correct
2 Correct 50 ms 85504 KB Output is correct
3 Correct 50 ms 85496 KB Output is correct
4 Correct 50 ms 85552 KB Output is correct
5 Correct 50 ms 85624 KB Output is correct
6 Correct 50 ms 85496 KB Output is correct
7 Correct 50 ms 85496 KB Output is correct
8 Correct 51 ms 85500 KB Output is correct
9 Correct 50 ms 85496 KB Output is correct
10 Correct 50 ms 85504 KB Output is correct
11 Correct 208 ms 92792 KB Output is correct
12 Correct 57 ms 89340 KB Output is correct
13 Correct 145 ms 89720 KB Output is correct
14 Correct 330 ms 97912 KB Output is correct
15 Correct 169 ms 89976 KB Output is correct
16 Correct 803 ms 93584 KB Output is correct
17 Correct 966 ms 124536 KB Output is correct
18 Correct 379 ms 96112 KB Output is correct
19 Correct 445 ms 93864 KB Output is correct
20 Correct 675 ms 107056 KB Output is correct