Submission #372970

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
372970	2021-03-02 18:44:57	luciocf	Examination (JOI19_examination)	C++14	2 / 100	3082 ms	265060 KiB

examination

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#include <bits/stdc++.h>
#define ff first
#define ss second
using namespace std;
typedef pair<int, int> pii;
const int maxn = 2e5+10;
struct BIT2D
{
  unordered_map<int, int> bit[maxn];
  void upd(int x, int y, int v)
  {
    for (int i = x; i < maxn; i += (i&-i))
      for (int j = y; j < maxn; j += (j&-j))
        bit[i][j] += v;
  }
  int soma(int x, int y)
  {
    int ans = 0;
    for (int i = x; i > 0; i -= (i&-i))
      for (int j = y; j > 0; j -= (j&-j))
        ans += bit[i][j];
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

examination.cpp: In function 'int main()':
examination.cpp:46:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   46 |  scanf("%d %d", &n, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~~
examination.cpp:52:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   52 |   scanf("%d %d", &a[i].ff, &a[i].ss);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
examination.cpp:60:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   60 |   scanf("%d %d %d", &query[i].x, &query[i].y, &query[i].z);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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