Submission #361250

#	Time	Username	Problem	Language	Result	Execution time	Memory
361250		MilosMilutinovic	Money (IZhO17_money)	C++14	100 / 100	199 ms	15152 KiB

money

#include <bits/stdc++.h>
using namespace std;
const int N=1000050;
int n,a[N],bit[N];
int Get(int x){int res=0;for(;x>0;x-=x&(-x))res+=bit[x];return res;}
void Add(int x){for(;x<N;x+=x&(-x))bit[x]++;}
int main(){
    scanf("%i",&n);
    for(int i=1;i<=n;i++)scanf("%i",&a[i]);
    int j=1,ans=1;
    for(int i=2;i<=n;i++){
        if(a[i]<a[i-1]||Get(a[i]-1)>Get(a[j])){
            ans++;
            while(j<i)Add(a[j]),j++;
        }
    }
    printf("%i",ans);
    return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:8:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    8 |     scanf("%i",&n);
      |     ~~~~~^~~~~~~~~
money.cpp:9:31: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    9 |     for(int i=1;i<=n;i++)scanf("%i",&a[i]);
      |                          ~~~~~^~~~~~~~~~~~

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