oj.uz

Submission #1090467

# Submission time Handle Problem Language Result Execution time Memory
1090467 2024-09-18T11:56:37 Z KasymK Awesome Arrowland Adventure (eJOI19_adventure) C++17
100 / 100
 66 ms 9108 KB 
#include "bits/stdc++.h"
using namespace std;
#define ff first
#define ss second
#define all(v) v.begin(), v.end()
#define ll long long
#define pb push_back
#define pii pair<int, int>
#define pli pair<ll, int>
#define pll pair<ll, ll>
#define tr(i, c) for(auto i = c.begin(); i != c.end(); ++i)
#define wr puts("----------------")
template<class T>bool umin(T& a,T b){if(a>b){a=b;return 1;}return 0;}
template<class T>bool umax(T& a,T b){if(a<b){a=b;return 1;}return 0;}
const int N = 5e3+5;
const int INF = 1e9;
char c[N][N];
int dis[N][N];

int main(){
    int n, m;
    scanf("%d%d", &n, &m);
    for(int i = 1; i <= n; ++i)
        for(int j = 1; j <= m; ++j)
            scanf(" %c", &c[i][j]), dis[i][j] = INF;
    auto check = [&](int x, int y){
        return (x >= 1 and x <= n and y >= 1 and y <= m);
    };
    using node = tuple<int, int, int>;
    priority_queue<node, vector<node>, greater<node>> q;
    q.push({0, 1, 1});
    dis[1][1] = 0;
    while(!q.empty()){
        int x, y, step;
        tie(step, x, y) = q.top();
        q.pop();
        if(c[x][y] == 'X')
            continue;
        if(check(x, y+1)){
            int add = 0;
            if(c[x][y] == 'N')
                add++;
            else if(c[x][y] == 'W')
                add += 2;
            else if(c[x][y] == 'S')
                add += 3;
            if(umin(dis[x][1+y], dis[x][y]+add))
                q.push({dis[x][1+y], x, 1+y});
        }
        if(check(x, y-1)){
            int add = 0;
            if(c[x][y] == 'S')
                add++;
            else if(c[x][y] == 'E')
                add += 2;
            else if(c[x][y] == 'N')
                add += 3;
            if(umin(dis[x][y-1], dis[x][y]+add))
                q.push({dis[x][y-1], x, y-1});
        }
        if(check(x-1, y)){
            int add = 0;
            if(c[x][y] == 'W')
                add++;
            else if(c[x][y] == 'S')
                add += 2;
            else if(c[x][y] == 'E')
                add += 3;
            if(umin(dis[x-1][y], dis[x][y]+add))
                q.push({dis[x-1][y], x-1, y});
        }
        if(check(x+1, y)){
            int add = 0;
            if(c[x][y] == 'E')
                add++;
            else if(c[x][y] == 'N')
                add += 2;
            else if(c[x][y] == 'W')
                add += 3;
            if(umin(dis[x+1][y], dis[x][y]+add))
                q.push({dis[x+1][y], x+1, y});
        }
    }
    int answer = dis[n][m];
    if(answer == INF)
        answer = -1;
    printf("%d\n", answer);
    return 0;
}

Compilation message

adventure.cpp: In function 'int main()':
adventure.cpp:22:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |     scanf("%d%d", &n, &m);
      |     ~~~~~^~~~~~~~~~~~~~~~
adventure.cpp:25:18: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   25 |             scanf(" %c", &c[i][j]), dis[i][j] = INF;
      |             ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 448 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 448 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 604 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 448 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 1 ms 440 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 448 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 1 ms 344 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 1 ms 344 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 344 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 1 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 4 ms 860 KB Output is correct
36 Correct 0 ms 448 KB Output is correct
37 Correct 5 ms 1392 KB Output is correct
38 Correct 3 ms 2652 KB Output is correct
39 Correct 43 ms 5960 KB Output is correct
40 Correct 43 ms 5724 KB Output is correct
41 Correct 13 ms 5720 KB Output is correct
42 Correct 43 ms 5832 KB Output is correct
43 Correct 66 ms 9108 KB Output is correct
44 Correct 12 ms 5720 KB Output is correct