信息学奥赛一本通编程启蒙题解(3031~3035)
前言
Hello大家好我是文宇
正文
3031
#include<bits/stdc++.h>
using namespace std;
double n,m,x;
int main(){cin>>n>>m;x=n-m*0.8;cout<<fixed<<setprecision(2)<<x;return 0;
}3032
#include<bits/stdc++.h>
using namespace std;
double a,b,h,s;
int main(){a=15;b=25;h=150*2/a;s=(a+b)*h/2;cout<<fixed<<setprecision(2)<<s;return 0;
}3033
#include<bits/stdc++.h>
using namespace std;
int x;
int main(){cin>>x;cout<<x/100<<endl;x=x%100;cout<<x/50<<endl;x=x%50;cout<<x/20<<endl;x=x%20;cout<<x/10<<endl;x=x%10;cout<<x/5<<endl;x=x%5;cout<<x/1;return 0;
}3034
#include<bits/stdc++.h>
using namespace std;
int x,y,z;
int main(){cin>>x>>y>>z;cout<<x*0.2+y*0.3+z*0.5;return 0;
}3035
#include<bits/stdc++.h>
using namespace std;
double V,PI,r;
int main(){cin>>r;PI=3.14;V=PI*r*r*r*4/3;cout<<fixed<<setprecision(2)<<V;return 0;
}