Submission #260026

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
260026	2020-08-09 03:16:35	minhcool	Examination (JOI19_examination)	C++17	0 / 100	2 ms	384 KiB

examination

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#include<bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define pb push_back
#define ins insert
#define er erase
typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
const int oo = 1e18 + 7, mod = 1e9 + 7;
const int N = 1e5 + 5;
int n, q, BIT[N], ans[N];
iii queries[N];
ii students[N];
void update(int u){
  for(; u <= 100000; u += (u & -u)) ++BIT[u];
}
int get(int u){
  int sum = 0;
  for(; u; u -= (u & -u)) sum += BIT[u];
  return sum;
 
 
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Compilation message (stderr)

examination.cpp: In function 'int main()':
examination.cpp:40:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("examination_19.inp", "r", stdin);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:41:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result]
  freopen("examination_19.out", "w", stdout);
  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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