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Submission #1007834

# Submission time Handle Problem Language Result Execution time Memory
1007834 2024-06-25T14:16:48 Z christinelynn Lasers (NOI19_lasers) C++17
100 / 100
 69 ms 12160 KB 
#include <bits/stdc++.h>
using namespace std; 
#define int long long
#define ld long double
#define fi first 
#define se second 
#define pb push_back
#define pii pair<int,int>
#define piii pair<pair<int,int>,pair<int,int>>
#define pip pair<int,pair<int,int>>

signed main(){
    ios_base::sync_with_stdio(false); 
    cin.tie(NULL); 
    cout.tie(NULL); 
    int ans = 0; 
    int n, q; cin >> n >> q; 
    vector<pair<int,int>>v; 
    for(int i = 1; i <= q; i++){
        int x; cin >> x; 
        int a[x+5]; 
        int tmp = 0; 
        for(int i = 1; i <= x; i++){
            cin >> a[i]; tmp += a[i]; 
        }
        int rem = n - tmp; 
        int cnt = 0; 
        int last = 0; 
        for(int i = 1; i <= x; i++){
            last += a[i]; 
            int val = a[i] - rem; 
            if(val <= 0)continue; 
            v.pb({last-val+1,last}); 
        }
    }
    sort(v.begin(),v.end()); 
    int last = 0; 
    for(int i = 0; i < v.size(); i++){
        //cout << "here >> " << v[i].fi << " " << v[i].se << endl; 
        if(v[i].fi > last){
            ans += (v[i].se - v[i].fi + 1); 
            last = v[i].se; 
        }
        else if(v[i].se > last){
            ans += (v[i].se - last); 
            last = v[i].se; 
        }
    }
    cout << ans << endl; 
}

Compilation message

lasers.cpp: In function 'int main()':
lasers.cpp:27:13: warning: unused variable 'cnt' [-Wunused-variable]
   27 |         int cnt = 0;
      |             ^~~
lasers.cpp:38:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |     for(int i = 0; i < v.size(); i++){
      |                    ~~^~~~~~~~~~

Subtask #1
10.0 / 10.0

# 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 452 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 0 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 #2
14.0 / 14.0

# 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 452 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 0 ms 348 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 61 ms 12160 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 69 ms 7216 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
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 6516 KB Output is correct
2 Correct 5 ms 1760 KB Output is correct
3 Correct 5 ms 1480 KB Output is correct
4 Correct 27 ms 7940 KB Output is correct
5 Correct 11 ms 3800 KB Output is correct
6 Correct 18 ms 4996 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 20 ms 4428 KB Output is correct
9 Correct 14 ms 6868 KB Output is correct
10 Correct 28 ms 7892 KB Output is correct

Subtask #4
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 452 KB Output is correct
3 Correct 0 ms 452 KB Output is correct
4 Correct 1 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 456 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 6516 KB Output is correct
2 Correct 5 ms 1760 KB Output is correct
3 Correct 5 ms 1480 KB Output is correct
4 Correct 27 ms 7940 KB Output is correct
5 Correct 11 ms 3800 KB Output is correct
6 Correct 18 ms 4996 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 20 ms 4428 KB Output is correct
9 Correct 14 ms 6868 KB Output is correct
10 Correct 28 ms 7892 KB Output is correct
11 Correct 1 ms 344 KB Output is correct
12 Correct 0 ms 452 KB Output is correct
13 Correct 0 ms 452 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 456 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 66 ms 8640 KB Output is correct
22 Correct 11 ms 2048 KB Output is correct
23 Correct 7 ms 2012 KB Output is correct
24 Correct 27 ms 6832 KB Output is correct
25 Correct 65 ms 8636 KB Output is correct
26 Correct 23 ms 6608 KB Output is correct
27 Correct 9 ms 2008 KB Output is correct
28 Correct 64 ms 8508 KB Output is correct
29 Correct 65 ms 8640 KB Output is correct
30 Correct 20 ms 3796 KB Output is correct

Subtask #6
13.0 / 13.0

# 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 452 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 0 ms 348 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 61 ms 12160 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 69 ms 7216 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 26 ms 6516 KB Output is correct
22 Correct 5 ms 1760 KB Output is correct
23 Correct 5 ms 1480 KB Output is correct
24 Correct 27 ms 7940 KB Output is correct
25 Correct 11 ms 3800 KB Output is correct
26 Correct 18 ms 4996 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 20 ms 4428 KB Output is correct
29 Correct 14 ms 6868 KB Output is correct
30 Correct 28 ms 7892 KB Output is correct
31 Correct 1 ms 344 KB Output is correct
32 Correct 0 ms 452 KB Output is correct
33 Correct 0 ms 452 KB Output is correct
34 Correct 1 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 456 KB Output is correct
38 Correct 1 ms 348 KB Output is correct
39 Correct 1 ms 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 66 ms 8640 KB Output is correct
42 Correct 11 ms 2048 KB Output is correct
43 Correct 7 ms 2012 KB Output is correct
44 Correct 27 ms 6832 KB Output is correct
45 Correct 65 ms 8636 KB Output is correct
46 Correct 23 ms 6608 KB Output is correct
47 Correct 9 ms 2008 KB Output is correct
48 Correct 64 ms 8508 KB Output is correct
49 Correct 65 ms 8640 KB Output is correct
50 Correct 20 ms 3796 KB Output is correct
51 Correct 10 ms 2268 KB Output is correct
52 Correct 68 ms 9888 KB Output is correct
53 Correct 67 ms 9664 KB Output is correct
54 Correct 17 ms 4052 KB Output is correct
55 Correct 40 ms 8916 KB Output is correct
56 Correct 24 ms 8660 KB Output is correct
57 Correct 27 ms 6840 KB Output is correct
58 Correct 69 ms 9988 KB Output is correct
59 Correct 20 ms 3540 KB Output is correct
60 Correct 28 ms 5068 KB Output is correct