ABC205(A-C)

A

#include<bits/stdc++.h>
using namespace std;
int main()
{
    double a,b;
    cin>>a>>b;
    cout<<(a/100.0)*b<<endl;
    return 0;
    
}

B

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int num[n];
    for(int i=0;i<n;i++){
        cin>>num[i];
    }
    sort(num,num+n);
    for(int i=0;i<n;i++){
        if(num[i]!=i+1){
            cout<<"No"<<endl;
            return 0;
        }
    }
cout<<"Yes"<<endl;
return 0;

}

C

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c;
    cin>>a>>b>>c;
    if(c%2==0){
        a=abs(a);
        b=abs(b);
    }
    if(a>b)cout<<">"<<endl;
    else if(a==b)cout<<"="<<endl;
    else if(a<b)cout<<"<"<<endl;
    return 0;
}