Submission #463492

#	Time	Username	Problem	Language	Result	Execution time	Memory
463492		kilikuma	Exam (eJOI20_exam)	C++14	12 / 100	16 ms	1316 KiB

exam

#include <bits/stdc++.h> 
using namespace std;
int main() {
  int nbEleves; scanf("%d",&nbEleves); 
  int A[100000+42]; 
  for (int i = 1; i<= nbEleves; i++) {
    scanf("%d",&A[i]); 
  }
  vector<int> obstacles; 
  obstacles.push_back(0); 
  int objectif; 
  scanf("%d",&objectif); 
  for (int i=1;i<=nbEleves; i++) {
    if (A[i] > objectif) {
      obstacles.push_back(i); 
    }
  }
  obstacles.push_back(nbEleves+1); 
  int maxi = 0; 
  for (int i=0;i<obstacles.size()-1;i++) {
    bool cond =false; 
    for (int a = obstacles[i]+1; a < obstacles[i+1]; a ++) {
      if (A[a] == objectif) cond = true; 
    }
    if (cond ){
      maxi += (obstacles[i+1]-obstacles[i]-1); 
    }
  }
  cout << maxi << endl; 
}

Compilation message (stderr)

exam.cpp: In function 'int main()':
exam.cpp:20:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   for (int i=0;i<obstacles.size()-1;i++) {
      |                ~^~~~~~~~~~~~~~~~~~~
exam.cpp:4:22: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    4 |   int nbEleves; scanf("%d",&nbEleves);
      |                 ~~~~~^~~~~~~~~~~~~~~~
exam.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d",&A[i]);
      |     ~~~~~^~~~~~~~~~~~
exam.cpp:12:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |   scanf("%d",&objectif);
      |   ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 0 / 14
• Subtask 2: 12 / 12
• Subtask 3: 0 / 13
• Subtask 4: 0 / 23
• Subtask 5: 0 / 16
• Subtask 6: 0 / 22