Submission #169177

#	Time	Username	Problem	Language	Result	Execution time	Memory
169177		itgl	Money (IZhO17_money)	C++14	0 / 100	2 ms	376 KiB

money

#include<bits/stdc++.h>
#define pb push_back

using namespace std;
int a[1000005];
multiset <int> ms;

int main(){
  int n;
  cin >> n;
  for(int i=1;i<=n;i++) cin >> a[i];
  a[n+1]=-1;
  int pos;
  for(int i=1;i<=n;i++){
    if(a[i+1]>a[i]) ms.insert(a[i]);
    else{
      pos=i+1;
      ms.insert(a[i]);
      break;
    }
  }
  ms.insert(1e6+7);
  int ans=1;
  a[pos-1]=0;
  int lim=-1;
  for(int i=pos;i<=n;i++){
    if(a[i]<lim&&a[i-1]<=a[i]){
      ms.insert(a[i]);
    }else{
      ans++;
      lim=*ms.upper_bound(a[i]);
      //cout << lim << endl;
    }
  }
  cout << ans << '\n';
  return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:13:7: warning: 'pos' may be used uninitialized in this function [-Wmaybe-uninitialized]
   int pos;
       ^~~

• Subtask 1: 0 / 9
• Subtask 2: 0 / 16
• Subtask 3: 0 / 20
• Subtask 4: 0 / 55