Submission #1272446

#	Time	Username	Problem	Language	Result	Execution time	Memory
1272446		doq	Examination (JOI19_examination)	C++20	0 / 100	1 ms	568 KiB

examination

#include<bits/stdc++.h>
using namespace std;
#define sz(x) (int) (x).size()
#define ALL(x) (x).begin(),(x).end()
#define pb push_back
const int N = 2e5 + 5;

void dnc(int l, int r) {
    if(l == r) return;
    int m = (l + r) >> 1;
    dnc(l, m); dnc(m + 1, r);


  
}

main() {
    ios_base::sync_with_stdio(0);cin.tie(0); cout.tie(0);
    #define task "ANHDEP"
    freopen(task ".inp", "r", stdin);
    freopen(task ".out", "w", stdout);

    int n, q; cin >> n >> q;
//    for(int i = 1; i <= n + q; i++)
//        cout << a[i].fi << ' ' << a[i].se << ' ' << a[i].th << ' ' << a[i].id << '\n';
    dnc(1, n + q);
}

Compilation message (stderr)

examination.cpp:17:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   17 | main() {
      | ^~~~
examination.cpp: In function 'int main()':
examination.cpp:20:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |     freopen(task ".inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:21:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   21 |     freopen(task ".out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 2
• Subtask 2: 0 / 20
• Subtask 3: 0 / 21
• Subtask 4: 0 / 57