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Submission #1097438

# Submission time Handle Problem Language Result Execution time Memory
1097438 2024-10-07T11:32:26 Z Kerim Jakarta Skyscrapers (APIO15_skyscraper) C++17
36 / 100
 314 ms 262144 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 = 3e4+5;
const ll INF = 1e18;
vector<pii> adj[N];
ll dis[N];
 
int main(){
    int n, m;
    scanf("%d%d", &n, &m);
    int s, t;
    for(int i = 1; i <= m; ++i){
        int x, p;
        scanf("%d%d", &x, &p), x++;
        if (i == 1)
            s = x;
        if (i == 2)
            t = x;
        for(int ad = 1;; ++ad){
            if(x-ad*p < 1 and x+ad*p > n)
                break;
            if(x-ad*p >= 1)
                adj[x].pb({x-ad*p, ad});
            if(x+ad*p <= n)
                adj[x].pb({x+ad*p, ad});
        }
    }
    for(int i = 1; i <= n; ++i)
        dis[i] = INF;
    priority_queue<pli, vector<pli>, greater<pli>> pq;
    pq.push({0, s});
    dis[s] = 0;
    while(!pq.empty()){
        pli P = pq.top();
        pq.pop();
        ll val = P.ff;
        int x = P.ss;
        if(dis[x] != val)
            continue;
        tr(it, adj[x]){
            int u = it->ff, w = it->ss;
            if(umin(dis[u], dis[x]+w))
                pq.push({dis[u], u});
        }
    }
    if(dis[t] == INF)
        puts("-1");
    else
        printf("%lld\n", dis[t]);
    return 0;
}

Compilation message

skyscraper.cpp: In function 'int main()':
skyscraper.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);
      |     ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   26 |         scanf("%d%d", &x, &p), x++;
      |         ~~~~~^~~~~~~~~~~~~~~~
skyscraper.cpp:44:12: warning: 's' may be used uninitialized in this function [-Wmaybe-uninitialized]
   44 |     dis[s] = 0;
      |     ~~~~~~~^~~
skyscraper.cpp:58:13: warning: 't' may be used uninitialized in this function [-Wmaybe-uninitialized]
   58 |     if(dis[t] == INF)
      |        ~~~~~^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 0 ms 1116 KB Output is correct
3 Correct 1 ms 1148 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 0 ms 1116 KB Output is correct
6 Correct 1 ms 1120 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 1112 KB Output is correct
4 Correct 1 ms 1112 KB Output is correct
5 Correct 1 ms 1112 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 4 ms 3280 KB Output is correct
13 Correct 4 ms 3276 KB Output is correct
14 Correct 2 ms 1116 KB Output is correct
15 Correct 2 ms 1116 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1116 KB Output is correct
2 Correct 1 ms 1148 KB Output is correct
3 Correct 1 ms 1116 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 0 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 2 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 5 ms 3276 KB Output is correct
13 Correct 5 ms 3280 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 1 ms 1116 KB Output is correct
16 Correct 1 ms 1116 KB Output is correct
17 Correct 1 ms 1372 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1120 KB Output is correct
20 Correct 52 ms 33308 KB Output is correct
21 Correct 1 ms 1120 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 1 ms 1116 KB Output is correct
24 Correct 1 ms 1372 KB Output is correct
25 Correct 2 ms 1372 KB Output is correct
26 Correct 49 ms 34172 KB Output is correct
27 Correct 56 ms 34164 KB Output is correct
28 Correct 1 ms 1372 KB Output is correct
29 Correct 3 ms 2140 KB Output is correct
30 Correct 2 ms 1408 KB Output is correct
31 Correct 2 ms 1628 KB Output is correct
32 Correct 2 ms 1372 KB Output is correct
33 Correct 3 ms 2780 KB Output is correct
34 Correct 6 ms 2776 KB Output is correct

Subtask #4
0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 0 ms 1116 KB Output is correct
4 Correct 1 ms 1372 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 0 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 0 ms 1116 KB Output is correct
9 Correct 0 ms 1116 KB Output is correct
10 Correct 1 ms 1116 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 3 ms 3288 KB Output is correct
13 Correct 4 ms 3284 KB Output is correct
14 Correct 1 ms 1120 KB Output is correct
15 Correct 1 ms 1124 KB Output is correct
16 Correct 1 ms 1124 KB Output is correct
17 Correct 1 ms 1380 KB Output is correct
18 Correct 1 ms 1116 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 47 ms 33076 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 1 ms 1116 KB Output is correct
24 Correct 2 ms 1372 KB Output is correct
25 Correct 2 ms 1372 KB Output is correct
26 Correct 50 ms 34104 KB Output is correct
27 Correct 51 ms 33984 KB Output is correct
28 Correct 2 ms 1372 KB Output is correct
29 Correct 3 ms 2140 KB Output is correct
30 Correct 2 ms 1408 KB Output is correct
31 Correct 2 ms 1628 KB Output is correct
32 Correct 2 ms 1372 KB Output is correct
33 Correct 4 ms 2776 KB Output is correct
34 Correct 4 ms 2784 KB Output is correct
35 Correct 11 ms 2908 KB Output is correct
36 Correct 2 ms 1372 KB Output is correct
37 Correct 10 ms 4644 KB Output is correct
38 Correct 13 ms 4232 KB Output is correct
39 Correct 11 ms 4188 KB Output is correct
40 Correct 12 ms 4036 KB Output is correct
41 Correct 12 ms 3932 KB Output is correct
42 Runtime error 292 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 1116 KB Output is correct
2 Correct 1 ms 1116 KB Output is correct
3 Correct 1 ms 1116 KB Output is correct
4 Correct 1 ms 1116 KB Output is correct
5 Correct 1 ms 1116 KB Output is correct
6 Correct 1 ms 1116 KB Output is correct
7 Correct 1 ms 1116 KB Output is correct
8 Correct 1 ms 1116 KB Output is correct
9 Correct 1 ms 1116 KB Output is correct
10 Correct 1 ms 1144 KB Output is correct
11 Correct 1 ms 1116 KB Output is correct
12 Correct 5 ms 3280 KB Output is correct
13 Correct 5 ms 3280 KB Output is correct
14 Correct 1 ms 1116 KB Output is correct
15 Correct 1 ms 1152 KB Output is correct
16 Correct 1 ms 1372 KB Output is correct
17 Correct 2 ms 1400 KB Output is correct
18 Correct 1 ms 1372 KB Output is correct
19 Correct 1 ms 1116 KB Output is correct
20 Correct 48 ms 33156 KB Output is correct
21 Correct 1 ms 1116 KB Output is correct
22 Correct 1 ms 1116 KB Output is correct
23 Correct 1 ms 1116 KB Output is correct
24 Correct 2 ms 1372 KB Output is correct
25 Correct 1 ms 1372 KB Output is correct
26 Correct 53 ms 34256 KB Output is correct
27 Correct 52 ms 33956 KB Output is correct
28 Correct 2 ms 1372 KB Output is correct
29 Correct 3 ms 2140 KB Output is correct
30 Correct 1 ms 1628 KB Output is correct
31 Correct 2 ms 1628 KB Output is correct
32 Correct 1 ms 1412 KB Output is correct
33 Correct 4 ms 2776 KB Output is correct
34 Correct 4 ms 2776 KB Output is correct
35 Correct 6 ms 2908 KB Output is correct
36 Correct 2 ms 1372 KB Output is correct
37 Correct 8 ms 4696 KB Output is correct
38 Correct 9 ms 4072 KB Output is correct
39 Correct 8 ms 4188 KB Output is correct
40 Correct 9 ms 4188 KB Output is correct
41 Correct 9 ms 4036 KB Output is correct
42 Runtime error 314 ms 262144 KB Execution killed with signal 9
43 Halted 0 ms 0 KB -