Submission #1102255

#	Time	Username	Problem	Language	Result	Execution time	Memory
1102255		thangdz2k7	Topical (NOI23_topical)	C++17	100 / 100	484 ms	109512 KiB

Main

// author : thembululquaUwU
// 3.9.2024

#include <bits/stdc++.h>
#define pb push_back
#define fi first
#define se second
#define endl '\n'

using namespace std;
using ll = long long;
using ii = pair <int, int>;
using vi = vector <int>;

const int N = 1e6 + 5;
const int mod = 1e9 + 7;

void maxl(auto &a, auto b) {a = max(a, b);}
void minl(auto &a, auto b) {a = min(a, b);}

int n, k, p[N], can[N], id[N];
vector <pair <int, int>> r[N];
vector <int> u[N];

void solve(){
    cin >> n >> k;
    for (int i = 0; i < n; ++ i){
        for (int j = 0, x; j < k; ++ j){
            cin >> x;
            r[j].emplace_back(x, i);
        }
    }

    for (int i = 0; i < n; ++ i){
        for (int j = 0, x; j < k; ++ j){
            cin >> x;
            u[i].push_back(x);
        }
    }

    for (int i = 0; i < k; ++ i) sort(r[i].begin(), r[i].end());
    int ans = 0;
    while (ans < n){
        vector <int> pass;
        for (int i = 0; i < k; ++ i){
            while (id[i] < n && p[i] >= r[i][id[i]].fi){
                int t = r[i][id[i]].se;
                can[t] ++; id[i] ++;
                if (can[t] == k) pass.push_back(t);
            }
        }
        if (pass.empty()) break;
        ans += int(pass.size());
        for (int i : pass){
            for (int j = 0; j < k; ++ j) p[j] = min(mod, p[j] + u[i][j]);
        }
    }

    cout << ans;
}

int main(){
    if (fopen("pqh.inp", "r")){
        freopen("pqh.inp", "r", stdin);
        freopen("pqh.out", "w", stdout);
    }
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t = 1; // cin >> t;
    while (t --) solve();
    return 0;
}

Compilation message (stderr)

Main.cpp:18:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |           ^~~~
Main.cpp:18:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   18 | void maxl(auto &a, auto b) {a = max(a, b);}
      |                    ^~~~
Main.cpp:19:11: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |           ^~~~
Main.cpp:19:20: warning: use of 'auto' in parameter declaration only available with '-fconcepts-ts'
   19 | void minl(auto &a, auto b) {a = min(a, b);}
      |                    ^~~~
Main.cpp: In function 'int main()':
Main.cpp:64:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   64 |         freopen("pqh.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:65:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |         freopen("pqh.out", "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 12 / 12
• Subtask 2: 28 / 28
• Subtask 3: 21 / 21
• Subtask 4: 39 / 39