白皮 Chapter 2

7.2 做题一遍就过的感觉简直太美好啦~然而我并没有测试数据QAQ

//program name digit
#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    int a,count=;
    cin>>a;
    while (a>){
        a=a/;
        count++;
    }
    cout<<count;
    return ;
}

digit

//program name daffodil
#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    int a,b,c;
    for (a=;a<=;a++)
        for (b=;b<=;b++)
            for (c=;c<=;c++)
                if (a*a*a+b*b*b+c*c*c==*a+*b+c) cout<<*a+*b+c<<"\n";
    return ;
}

daffodil

//program name hanxin
#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    int a,b,c,i;
    cin>>a>>b>>c;
    for (i=;i<=;i++)
        if (i % ==a && i % ==b && i % ==c)
        {
            cout<<i<<"\n";
            break;
        }
    if (i==) cout<<"No answer";
    return ;
}

hanxin

//program name triangle
#include<cstdio>
#include<iostream>
using namespace std;
int main()
{
    int n,i,j;
    cin>>n;
    for (i=;i<=n;i++)
    {
        for (j=;j<=i-;j++) cout<<" ";
        for (j=;j<=*(n-i)+;j++) cout<<"#";
        cout<<"\n";
    }
    return ;
}

triangle

7.3 要坚持练语法打下扎实基础啊~