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Submission #1007708

# Submission time Handle Problem Language Result Execution time Memory
1007708 2024-06-25T11:15:52 Z makanhulia Lasers (NOI19_lasers) C++17
100 / 100
 95 ms 11852 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define lld double
#define int ll
#define usaco(fname) freopen(#fname ".in","r",stdin);freopen(#fname ".out","w",stdout);
template<typename A, typename B> ostream& operator<<(ostream &os, const pair<A, B> &p) { return os << '(' << p.first << ", " << p.second << ')'; }
template<typename T_container, typename T = typename enable_if<!is_same<T_container, string>::value, typename T_container::value_type>::type> ostream& operator<<(ostream &os, const T_container &v) { os << '{'; string sep; for (const T &x : v) os << sep << x, sep = ", "; return os << '}'; }
// const ll INF = 1e18;
const int INF = 1e9;
const int mod = 1e9+7;
const lld PI = acos(-1.0);
int di[] = {1, -1, 0, 0, 1, 1, -1, -1};
int dj[] = {0, 0, 1, -1, 1, -1, 1, -1};
#define debug(x) cout << #x << ": " << x << endl;
#define add(a, b) a += b, a %= mod
#define mul(a, b) ((a % mod) * (b % mod)) % mod
#define all(x) x.begin(),x.end()

void solve() {
  int n,q;cin>>n>>q;

  vector<pair<int, int>> intervals;
  while (q--) {
    int k;cin>>k;
    vector<int> a(k);
    for (int i = 0; i < k; i++) cin >> a[i];

    int sum = accumulate(all(a),0);
    int left = n-sum;

    int now = 0;
    for (int i = 0; i < k; i++) {
      now += a[i];
      intervals.push_back({now-a[i]+left+1, now});
    }
  }

  sort(all(intervals));

  int nowl = -1, nowr = -1;
  int ans = 0;
  // cout << intervals << endl;
  for (int i = 0; i < intervals.size(); i++) {
    auto [l, r] = intervals[i];
    if (l > r) continue;
    if (nowl == -1 && nowr == -1) {
      nowl = l;
      nowr = r;
      continue;
    }
    
    if (l > nowr) {
      ans += nowr-nowl+1;
      nowl = l;
      nowr = r;
    }

    nowr = max(nowr, r);
  }

  if (nowl != -1) ans += nowr-nowl+1;
  cout << ans << endl;
}

int32_t main() {
  ios_base::sync_with_stdio(0);cin.tie(0);
  int t=1;
  while(t--) solve();

  return 0;
}

Compilation message

lasers.cpp: In function 'void solve()':
lasers.cpp:44:21: 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]
   44 |   for (int i = 0; i < intervals.size(); i++) {
      |                   ~~^~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 344 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 1 ms 348 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 344 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 1 ms 348 KB Output is correct
12 Correct 63 ms 9176 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 95 ms 8644 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 0 ms 344 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 30 ms 10988 KB Output is correct
2 Correct 7 ms 2540 KB Output is correct
3 Correct 8 ms 2624 KB Output is correct
4 Correct 27 ms 10976 KB Output is correct
5 Correct 17 ms 6484 KB Output is correct
6 Correct 35 ms 11676 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 47 ms 11648 KB Output is correct
9 Correct 14 ms 5836 KB Output is correct
10 Correct 34 ms 11852 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 348 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 408 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 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 30 ms 10988 KB Output is correct
2 Correct 7 ms 2540 KB Output is correct
3 Correct 8 ms 2624 KB Output is correct
4 Correct 27 ms 10976 KB Output is correct
5 Correct 17 ms 6484 KB Output is correct
6 Correct 35 ms 11676 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 47 ms 11648 KB Output is correct
9 Correct 14 ms 5836 KB Output is correct
10 Correct 34 ms 11852 KB Output is correct
11 Correct 1 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 344 KB Output is correct
15 Correct 0 ms 408 KB Output is correct
16 Correct 0 ms 348 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 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 88 ms 9936 KB Output is correct
22 Correct 16 ms 2524 KB Output is correct
23 Correct 9 ms 2768 KB Output is correct
24 Correct 43 ms 10028 KB Output is correct
25 Correct 86 ms 9680 KB Output is correct
26 Correct 33 ms 8904 KB Output is correct
27 Correct 13 ms 2532 KB Output is correct
28 Correct 93 ms 8656 KB Output is correct
29 Correct 87 ms 10428 KB Output is correct
30 Correct 32 ms 10156 KB Output is correct

Subtask #6
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 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 344 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 1 ms 348 KB Output is correct
12 Correct 63 ms 9176 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 95 ms 8644 KB Output is correct
18 Correct 1 ms 600 KB Output is correct
19 Correct 0 ms 344 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 30 ms 10988 KB Output is correct
22 Correct 7 ms 2540 KB Output is correct
23 Correct 8 ms 2624 KB Output is correct
24 Correct 27 ms 10976 KB Output is correct
25 Correct 17 ms 6484 KB Output is correct
26 Correct 35 ms 11676 KB Output is correct
27 Correct 1 ms 604 KB Output is correct
28 Correct 47 ms 11648 KB Output is correct
29 Correct 14 ms 5836 KB Output is correct
30 Correct 34 ms 11852 KB Output is correct
31 Correct 1 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 344 KB Output is correct
35 Correct 0 ms 408 KB Output is correct
36 Correct 0 ms 348 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 344 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 88 ms 9936 KB Output is correct
42 Correct 16 ms 2524 KB Output is correct
43 Correct 9 ms 2768 KB Output is correct
44 Correct 43 ms 10028 KB Output is correct
45 Correct 86 ms 9680 KB Output is correct
46 Correct 33 ms 8904 KB Output is correct
47 Correct 13 ms 2532 KB Output is correct
48 Correct 93 ms 8656 KB Output is correct
49 Correct 87 ms 10428 KB Output is correct
50 Correct 32 ms 10156 KB Output is correct
51 Correct 11 ms 2640 KB Output is correct
52 Correct 78 ms 10572 KB Output is correct
53 Correct 77 ms 10432 KB Output is correct
54 Correct 21 ms 6356 KB Output is correct
55 Correct 49 ms 9676 KB Output is correct
56 Correct 30 ms 9028 KB Output is correct
57 Correct 39 ms 9928 KB Output is correct
58 Correct 86 ms 8900 KB Output is correct
59 Correct 28 ms 5332 KB Output is correct
60 Correct 43 ms 10184 KB Output is correct