Submission

Score: 100

User: Standard_User_09

Problemset: ปราสาท

Language: cpp

Time: 0.002 second

Submitted On: 2025-11-03 08:51:52

#include <iostream>
using namespace std;
int main(){
    int nm, sr, rs=0;
    cin>>nm;
    for(int n=0;n*n<=nm;n++){sr=n;}
    if(nm%2==sr%2) rs-=1;
    if(sr*sr==nm) rs-=1;
    cout<<(2*sr)+rs;}