oj.uz

Submission #1007699

# Submission time Handle Problem Language Result Execution time Memory
1007699 2024-06-25T10:41:45 Z devariaota Lasers (NOI19_lasers) C++17
100 / 100
 143 ms 15696 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pb push_back
#define pii pair<int, int>
#define all(x) x.begin(), x.end()
bool ckmin(int& a, int b){return b < a ? a = b, 1 : 0;}
bool ckmax(int& a, int b){return b > a ? a = b, 1 : 0;}
const int N = 2e5 + 5, mod = 1e9 + 7;

signed main(){
    ios_base::sync_with_stdio(0), cin.tie(0);
    int n, q; cin >> n >> q;
    set<pii> st;
    while(q--) {
        int k, s = 0; cin >> k;
        vector<int> v(k);
        int r = n, id = 0;
        for(int i = 0; i < k; i++) {
            cin >> v[i];
            s += v[i];
        }
        int ll = 0, l = n - s + 1;
        int rl = -1, rh = -1;
        for(int i = 0; i < k; i++) {
            ll += v[i];
            if(ll >= l) st.insert({l, ll});
            // cout << i << " " << ll << " " << l << endl;
            l += v[i];
        }
    }
    // for(auto i : st) cout << i.fi << " " << i.se << endl;
    int l = -1, r = -1, ans = 0;
    for(auto i : st) {
        if(l == -1) ans += i.se - i.fi + 1, l = i.se + 1;
        else if(i.se >= l) {
            l = max(l, i.fi);
            ans += i.se - l + 1;
            l = i.se + 1;
        }
    }
    cout << ans << endl;
}

Compilation message

lasers.cpp: In function 'int main()':
lasers.cpp:20:13: warning: unused variable 'r' [-Wunused-variable]
   20 |         int r = n, id = 0;
      |             ^
lasers.cpp:20:20: warning: unused variable 'id' [-Wunused-variable]
   20 |         int r = n, id = 0;
      |                    ^~
lasers.cpp:26:13: warning: unused variable 'rl' [-Wunused-variable]
   26 |         int rl = -1, rh = -1;
      |             ^~
lasers.cpp:26:22: warning: unused variable 'rh' [-Wunused-variable]
   26 |         int rl = -1, rh = -1;
      |                      ^~
lasers.cpp:35:17: warning: unused variable 'r' [-Wunused-variable]
   35 |     int l = -1, r = -1, ans = 0;
      |                 ^

Subtask #1
10.0 / 10.0

# 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 344 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 0 ms 348 KB Output is correct
9 Correct 1 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 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 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 0 ms 348 KB Output is correct
9 Correct 1 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 58 ms 436 KB Output is correct
13 Correct 0 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 135 ms 13264 KB Output is correct
18 Correct 0 ms 348 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 42 ms 12152 KB Output is correct
2 Correct 7 ms 2164 KB Output is correct
3 Correct 6 ms 1472 KB Output is correct
4 Correct 42 ms 13492 KB Output is correct
5 Correct 14 ms 5468 KB Output is correct
6 Correct 20 ms 3852 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 25 ms 6088 KB Output is correct
9 Correct 28 ms 9560 KB Output is correct
10 Correct 49 ms 15568 KB Output is correct

Subtask #4
21.0 / 21.0

# 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 1 ms 344 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 #5
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 12152 KB Output is correct
2 Correct 7 ms 2164 KB Output is correct
3 Correct 6 ms 1472 KB Output is correct
4 Correct 42 ms 13492 KB Output is correct
5 Correct 14 ms 5468 KB Output is correct
6 Correct 20 ms 3852 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 25 ms 6088 KB Output is correct
9 Correct 28 ms 9560 KB Output is correct
10 Correct 49 ms 15568 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 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 1 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 135 ms 12116 KB Output is correct
22 Correct 22 ms 4444 KB Output is correct
23 Correct 10 ms 3556 KB Output is correct
24 Correct 43 ms 11424 KB Output is correct
25 Correct 143 ms 12020 KB Output is correct
26 Correct 49 ms 8788 KB Output is correct
27 Correct 18 ms 3672 KB Output is correct
28 Correct 130 ms 12192 KB Output is correct
29 Correct 128 ms 12252 KB Output is correct
30 Correct 30 ms 8348 KB Output is correct

Subtask #6
13.0 / 13.0

# 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 344 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 0 ms 348 KB Output is correct
9 Correct 1 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 58 ms 436 KB Output is correct
13 Correct 0 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 135 ms 13264 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 42 ms 12152 KB Output is correct
22 Correct 7 ms 2164 KB Output is correct
23 Correct 6 ms 1472 KB Output is correct
24 Correct 42 ms 13492 KB Output is correct
25 Correct 14 ms 5468 KB Output is correct
26 Correct 20 ms 3852 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 25 ms 6088 KB Output is correct
29 Correct 28 ms 9560 KB Output is correct
30 Correct 49 ms 15568 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 0 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 0 ms 348 KB Output is correct
36 Correct 1 ms 344 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 135 ms 12116 KB Output is correct
42 Correct 22 ms 4444 KB Output is correct
43 Correct 10 ms 3556 KB Output is correct
44 Correct 43 ms 11424 KB Output is correct
45 Correct 143 ms 12020 KB Output is correct
46 Correct 49 ms 8788 KB Output is correct
47 Correct 18 ms 3672 KB Output is correct
48 Correct 130 ms 12192 KB Output is correct
49 Correct 128 ms 12252 KB Output is correct
50 Correct 30 ms 8348 KB Output is correct
51 Correct 15 ms 4768 KB Output is correct
52 Correct 134 ms 15092 KB Output is correct
53 Correct 143 ms 15232 KB Output is correct
54 Correct 30 ms 5456 KB Output is correct
55 Correct 85 ms 12624 KB Output is correct
56 Correct 42 ms 10568 KB Output is correct
57 Correct 55 ms 9296 KB Output is correct
58 Correct 142 ms 15696 KB Output is correct
59 Correct 43 ms 7248 KB Output is correct
60 Correct 58 ms 8528 KB Output is correct