Submission #699722

#	Time	Username	Problem	Language	Result	Execution time	Memory
699722		inwbear	Cipele (COCI18_cipele)	C++14	90 / 90	49 ms	3068 KiB

cipele

#include<bits/stdc++.h>
using namespace std;
#define pb push_back
int n,m,x,ans,st,ed,md;
vector<int>l,r;
bool chk(int k){
  int cur=0,co=0;
  for(int i=0;i<l.size();i++){
    while(abs(l[i]-r[cur])>k){
      cur++;
      if(cur>=r.size())break;
    }
    if(cur>=r.size())break;
    co++;
    cur++;
    if(cur>=r.size())break;
  }
  if(co==l.size())return true;
  else return false;
}
int main(){
  scanf("%d %d",&n,&m);
  for(int i=0;i<n;i++){
    scanf("%d",&x);
    l.pb(x);
  }
  for(int i=0;i<m;i++){
    scanf("%d",&x);
    r.pb(x);
  }
  sort(l.begin(),l.end());
  sort(r.begin(),r.end());
  if(m<n)swap(n,m),swap(l,r);
  ans=INT_MAX,st=0,ed=(int)1e9;
  while(st<=ed){
    md=(st+ed)/2;
    if(chk(md)){
      ans=min(ans,md);
      ed=md-1;
    }
    else{
      st=md+1;
    }
  }
  printf("%d",ans);
}

Compilation message (stderr)

cipele.cpp: In function 'bool chk(int)':
cipele.cpp:8:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |   for(int i=0;i<l.size();i++){
      |               ~^~~~~~~~~
cipele.cpp:11:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |       if(cur>=r.size())break;
      |          ~~~^~~~~~~~~~
cipele.cpp:13:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     if(cur>=r.size())break;
      |        ~~~^~~~~~~~~~
cipele.cpp:16:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   16 |     if(cur>=r.size())break;
      |        ~~~^~~~~~~~~~
cipele.cpp:18:8: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |   if(co==l.size())return true;
      |      ~~^~~~~~~~~~
cipele.cpp: In function 'int main()':
cipele.cpp:22:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   22 |   scanf("%d %d",&n,&m);
      |   ~~~~~^~~~~~~~~~~~~~~
cipele.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   24 |     scanf("%d",&x);
      |     ~~~~~^~~~~~~~~
cipele.cpp:28:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |     scanf("%d",&x);
      |     ~~~~~^~~~~~~~~

• Subtask 1: 9 / 9
• Subtask 2: 9 / 9
• Subtask 3: 9 / 9
• Subtask 4: 9 / 9
• Subtask 5: 9 / 9
• Subtask 6: 9 / 9
• Subtask 7: 9 / 9
• Subtask 8: 9 / 9
• Subtask 9: 9 / 9
• Subtask 10: 9 / 9