Submission #532298

#	Time	Username	Problem	Language	Result	Execution time	Memory
532298		devariaota	Money (IZhO17_money)	C++17	45 / 100	1534 ms	5620 KiB

money

#include <bits/stdc++.h>
using namespace std;
const int N = 5e5 + 100;
int arr[N],memo[N];
int main(){
    int n;
    scanf("%d",&n);
    for(int i=0;i<n;i++){
        scanf("%d",&arr[i]);
    }
    for(int i=0;i<n;i++){
        memo[i] = i + 1;
        if(i) memo[i] = min(memo[i],memo[i-1] + 1);
        for(int j = i - 1;j >= 0;j--){
            if(arr[j] > arr[j+1]) break;
            bool flag = 0;
            for(int k = 0;k < j;k++){
                if(arr[k] > arr[j] && arr[k] < arr[i]){
                    flag = 1;
                    break;
                }
            }
            if(!flag) memo[i] = min(memo[i], (j ? memo[j - 1] : 0 ) + 1);
        }
    }
    printf("%d",memo[n-1]);
    return 0;
}

Compilation message (stderr)

money.cpp: In function 'int main()':
money.cpp:7:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
money.cpp:9:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    9 |         scanf("%d",&arr[i]);
      |         ~~~~~^~~~~~~~~~~~~~

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