oj.uz

Submission #1097665

# Submission time Handle Problem Language Result Execution time Memory
1097665 2024-10-07T23:50:10 Z hickwhither Construction Project 2 (JOI24_ho_t2) C++17
100 / 100
 175 ms 29420 KB 
#include <iostream>
#include <queue>
#include <vector>
#include <algorithm>
 
using namespace std;
 
#define int int64_t
 
const int MAXN = 2e5+3;
const int64_t INF = 1e18+69;
int n, m;
 
vector<pair<int,int>> e[MAXN];
 
int Start, End, lol, mintime;
 
int64_t ans;
int64_t f[2][MAXN];
 
void dijkstra(int s, int64_t f[]){
    fill(f+1,f+1+n,INF);
 
    priority_queue<pair<int64_t,int>, vector<pair<int64_t,int>>, greater<pair<int64_t,int>>> pq;
    pq.emplace(0, s);
    f[s] = 0;
    while(!pq.empty()){
        pair<int64_t,int> z = pq.top(); pq.pop();
        int64_t du = z.first;
        int u=z.second;
        if(du>f[u])continue;
        for(pair<int,int> &z : e[u]){
            int v=z.first, w=z.second;
            if(f[u]+w<f[v]){
                f[v] = f[u]+w;
                pq.emplace(f[v], v);
            }
        }
    }
 
}
 
signed main()
{
    cin.tie(0) -> sync_with_stdio(0);
    if(fopen("*.inp", "r")){
        freopen("*.inp", "r",stdin);
        freopen("*.out", "w",stdout);
    }
    
    cin >> n >> m;
    cin >> Start >> End >> lol >> mintime;
    for(int u, v, w, i=0; i<m; ++i){
        cin >> u >> v >> w;
        e[u].emplace_back(v, w);
        e[v].emplace_back(u, w);
    }
    dijkstra(Start, f[0]);
    dijkstra(End, f[1]);
 
 	if(f[0][End]<=mintime) {cout << n*(n-1)/2; return 0;}
  
    sort(f[0]+1, f[0]+1+n);
    sort(f[1]+1, f[1]+1+n);
 
    for(int i=1; i<=n; ++i){
        if(mintime<lol+f[1][i])break;
        auto x = upper_bound(f[0]+1, f[0]+1+n, mintime-lol-f[1][i]) - f[0];
        ans += x-1;
    }
    cout << ans;
 
 
 
    return 0;
}

Compilation message

Main.cpp: In function 'int main()':
Main.cpp:47:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   47 |         freopen("*.inp", "r",stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~
Main.cpp:48:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |         freopen("*.out", "w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 5212 KB Output is correct
6 Correct 3 ms 5244 KB Output is correct
7 Correct 55 ms 21236 KB Output is correct
8 Correct 63 ms 21456 KB Output is correct
9 Correct 58 ms 22104 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 2 ms 5160 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 3 ms 5212 KB Output is correct
14 Correct 34 ms 14988 KB Output is correct
15 Correct 124 ms 22512 KB Output is correct
16 Correct 2 ms 5208 KB Output is correct
17 Correct 3 ms 5212 KB Output is correct
18 Correct 69 ms 20536 KB Output is correct
19 Correct 2 ms 4952 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 34 ms 14936 KB Output is correct
24 Correct 116 ms 22512 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 3 ms 5468 KB Output is correct
27 Correct 69 ms 27708 KB Output is correct
28 Correct 52 ms 20596 KB Output is correct
29 Correct 53 ms 18140 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4956 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4952 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 3 ms 4956 KB Output is correct
18 Correct 2 ms 4952 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 2 ms 4956 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4936 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 3 ms 5164 KB Output is correct
27 Correct 2 ms 5108 KB Output is correct
28 Correct 2 ms 4956 KB Output is correct
29 Correct 2 ms 5156 KB Output is correct
30 Correct 2 ms 5212 KB Output is correct
31 Correct 2 ms 4956 KB Output is correct
32 Correct 2 ms 4956 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4952 KB Output is correct
2 Correct 2 ms 4952 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 2 ms 4956 KB Output is correct
6 Correct 2 ms 4956 KB Output is correct
7 Correct 2 ms 4956 KB Output is correct
8 Correct 2 ms 4956 KB Output is correct
9 Correct 2 ms 4956 KB Output is correct
10 Correct 2 ms 4956 KB Output is correct
11 Correct 2 ms 4956 KB Output is correct
12 Correct 2 ms 4956 KB Output is correct
13 Correct 2 ms 5208 KB Output is correct
14 Correct 2 ms 4952 KB Output is correct
15 Correct 3 ms 4956 KB Output is correct
16 Correct 2 ms 4956 KB Output is correct
17 Correct 3 ms 4956 KB Output is correct
18 Correct 2 ms 4952 KB Output is correct
19 Correct 2 ms 4956 KB Output is correct
20 Correct 2 ms 4956 KB Output is correct
21 Correct 2 ms 4956 KB Output is correct
22 Correct 2 ms 4956 KB Output is correct
23 Correct 2 ms 4936 KB Output is correct
24 Correct 2 ms 4956 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 3 ms 5164 KB Output is correct
27 Correct 2 ms 5108 KB Output is correct
28 Correct 2 ms 4956 KB Output is correct
29 Correct 2 ms 5156 KB Output is correct
30 Correct 2 ms 5212 KB Output is correct
31 Correct 2 ms 4956 KB Output is correct
32 Correct 2 ms 4956 KB Output is correct
33 Correct 4 ms 5468 KB Output is correct
34 Correct 3 ms 5468 KB Output is correct
35 Correct 2 ms 5212 KB Output is correct
36 Correct 4 ms 5212 KB Output is correct
37 Correct 3 ms 5168 KB Output is correct
38 Correct 3 ms 5212 KB Output is correct
39 Correct 3 ms 5212 KB Output is correct
40 Correct 3 ms 5464 KB Output is correct
41 Correct 3 ms 5424 KB Output is correct
42 Correct 3 ms 5212 KB Output is correct
43 Correct 4 ms 5460 KB Output is correct
44 Correct 3 ms 5284 KB Output is correct
45 Correct 4 ms 5212 KB Output is correct
46 Correct 3 ms 5468 KB Output is correct
47 Correct 3 ms 5168 KB Output is correct
48 Correct 3 ms 5172 KB Output is correct
49 Correct 3 ms 5212 KB Output is correct
50 Correct 3 ms 5212 KB Output is correct
51 Correct 4 ms 5264 KB Output is correct
52 Correct 3 ms 5212 KB Output is correct
53 Correct 4 ms 5468 KB Output is correct
54 Correct 4 ms 5720 KB Output is correct
55 Correct 3 ms 5208 KB Output is correct
56 Correct 3 ms 5208 KB Output is correct
57 Correct 3 ms 5212 KB Output is correct
58 Correct 3 ms 5212 KB Output is correct

Subtask #4
47.0 / 47.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 4956 KB Output is correct
2 Correct 2 ms 4956 KB Output is correct
3 Correct 2 ms 4956 KB Output is correct
4 Correct 2 ms 4956 KB Output is correct
5 Correct 3 ms 5212 KB Output is correct
6 Correct 3 ms 5244 KB Output is correct
7 Correct 55 ms 21236 KB Output is correct
8 Correct 63 ms 21456 KB Output is correct
9 Correct 58 ms 22104 KB Output is correct
10 Correct 2 ms 4952 KB Output is correct
11 Correct 2 ms 5160 KB Output is correct
12 Correct 2 ms 5212 KB Output is correct
13 Correct 3 ms 5212 KB Output is correct
14 Correct 34 ms 14988 KB Output is correct
15 Correct 124 ms 22512 KB Output is correct
16 Correct 2 ms 5208 KB Output is correct
17 Correct 3 ms 5212 KB Output is correct
18 Correct 69 ms 20536 KB Output is correct
19 Correct 2 ms 4952 KB Output is correct
20 Correct 2 ms 4952 KB Output is correct
21 Correct 2 ms 5212 KB Output is correct
22 Correct 3 ms 5212 KB Output is correct
23 Correct 34 ms 14936 KB Output is correct
24 Correct 116 ms 22512 KB Output is correct
25 Correct 2 ms 4956 KB Output is correct
26 Correct 3 ms 5468 KB Output is correct
27 Correct 69 ms 27708 KB Output is correct
28 Correct 52 ms 20596 KB Output is correct
29 Correct 53 ms 18140 KB Output is correct
30 Correct 2 ms 4952 KB Output is correct
31 Correct 2 ms 4952 KB Output is correct
32 Correct 2 ms 4956 KB Output is correct
33 Correct 2 ms 4956 KB Output is correct
34 Correct 2 ms 4956 KB Output is correct
35 Correct 2 ms 4956 KB Output is correct
36 Correct 2 ms 4956 KB Output is correct
37 Correct 2 ms 4956 KB Output is correct
38 Correct 2 ms 4956 KB Output is correct
39 Correct 2 ms 4956 KB Output is correct
40 Correct 2 ms 4956 KB Output is correct
41 Correct 2 ms 4956 KB Output is correct
42 Correct 2 ms 5208 KB Output is correct
43 Correct 2 ms 4952 KB Output is correct
44 Correct 3 ms 4956 KB Output is correct
45 Correct 2 ms 4956 KB Output is correct
46 Correct 3 ms 4956 KB Output is correct
47 Correct 2 ms 4952 KB Output is correct
48 Correct 2 ms 4956 KB Output is correct
49 Correct 2 ms 4956 KB Output is correct
50 Correct 2 ms 4956 KB Output is correct
51 Correct 2 ms 4956 KB Output is correct
52 Correct 2 ms 4936 KB Output is correct
53 Correct 2 ms 4956 KB Output is correct
54 Correct 2 ms 4956 KB Output is correct
55 Correct 3 ms 5164 KB Output is correct
56 Correct 2 ms 5108 KB Output is correct
57 Correct 2 ms 4956 KB Output is correct
58 Correct 2 ms 5156 KB Output is correct
59 Correct 2 ms 5212 KB Output is correct
60 Correct 2 ms 4956 KB Output is correct
61 Correct 2 ms 4956 KB Output is correct
62 Correct 4 ms 5468 KB Output is correct
63 Correct 3 ms 5468 KB Output is correct
64 Correct 2 ms 5212 KB Output is correct
65 Correct 4 ms 5212 KB Output is correct
66 Correct 3 ms 5168 KB Output is correct
67 Correct 3 ms 5212 KB Output is correct
68 Correct 3 ms 5212 KB Output is correct
69 Correct 3 ms 5464 KB Output is correct
70 Correct 3 ms 5424 KB Output is correct
71 Correct 3 ms 5212 KB Output is correct
72 Correct 4 ms 5460 KB Output is correct
73 Correct 3 ms 5284 KB Output is correct
74 Correct 4 ms 5212 KB Output is correct
75 Correct 3 ms 5468 KB Output is correct
76 Correct 3 ms 5168 KB Output is correct
77 Correct 3 ms 5172 KB Output is correct
78 Correct 3 ms 5212 KB Output is correct
79 Correct 3 ms 5212 KB Output is correct
80 Correct 4 ms 5264 KB Output is correct
81 Correct 3 ms 5212 KB Output is correct
82 Correct 4 ms 5468 KB Output is correct
83 Correct 4 ms 5720 KB Output is correct
84 Correct 3 ms 5208 KB Output is correct
85 Correct 3 ms 5208 KB Output is correct
86 Correct 3 ms 5212 KB Output is correct
87 Correct 3 ms 5212 KB Output is correct
88 Correct 94 ms 23684 KB Output is correct
89 Correct 91 ms 23560 KB Output is correct
90 Correct 97 ms 23556 KB Output is correct
91 Correct 39 ms 19028 KB Output is correct
92 Correct 40 ms 19032 KB Output is correct
93 Correct 37 ms 15696 KB Output is correct
94 Correct 49 ms 15664 KB Output is correct
95 Correct 153 ms 24720 KB Output is correct
96 Correct 136 ms 24528 KB Output is correct
97 Correct 134 ms 22972 KB Output is correct
98 Correct 124 ms 23068 KB Output is correct
99 Correct 60 ms 22096 KB Output is correct
100 Correct 60 ms 21864 KB Output is correct
101 Correct 38 ms 19024 KB Output is correct
102 Correct 44 ms 19172 KB Output is correct
103 Correct 37 ms 15700 KB Output is correct
104 Correct 37 ms 15768 KB Output is correct
105 Correct 175 ms 24496 KB Output is correct
106 Correct 153 ms 24512 KB Output is correct
107 Correct 139 ms 29096 KB Output is correct
108 Correct 140 ms 29420 KB Output is correct
109 Correct 74 ms 21648 KB Output is correct
110 Correct 66 ms 21652 KB Output is correct
111 Correct 82 ms 19424 KB Output is correct
112 Correct 86 ms 19420 KB Output is correct