Submission #341451

#	Time	Username	Problem	Language	Result	Execution time	Memory
341451		katearima	Money (IZhO17_money)	C++14	100 / 100	1457 ms	58220 KiB

money

#include <bits/stdc++.h>
using namespace std;
const int N=1e6+5;
int n,t,ans, a[N], mn,mx;
set <int> st;
set<int>::iterator itr;
main(){
    cin>>n;
    mn=1e6+4;
    for(int i=0; i<n; i++){
        cin>>a[i];
        mx=max(mx, a[i]);
        mn=min(mn, a[i]);
    }
    mn--; mx++;
    //cout<<mn<<" "<<mx<<endl;
    st.insert(mn); st.insert(mx);
    for(int i=0; i<n; i++){
            bool tr=false;
        st.insert(a[i]);
        int k=*st.upper_bound(a[i]);
        while(a[i]<=a[i+1] && a[i+1]<=k){
            st.insert(a[i+1]);
            i++;
            tr=true;
        }
        //if(tr) i--;
        //cout<<i<<" "<<a[i]<<endl;
        ans++;
    }
    cout<<ans<<endl;
}

Compilation message (stderr)

money.cpp:7:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    7 | main(){
      |      ^
money.cpp: In function 'int main()':
money.cpp:19:18: warning: variable 'tr' set but not used [-Wunused-but-set-variable]
   19 |             bool tr=false;
      |                  ^~

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