算法修炼之练气篇——练气十二层

#include<stdio.h>intmain()
{
printf("1993\n");//很迷的一道题。。。。。。return0;
}

#include<bits/stdc++.h>usingnamespacestd;
strings1;
intmain()
{
inti,sum=0;
while(cin>>s1)
    {
for(i=0;i<s1.length();i++)
        {
sum=sum+s1[i]-48;
        }
cout<<sum<<endl;
sum=0;
    }
return0;
}

#include<bits/stdc++.h>usingnamespacestd;
strings1;
intmain()
{
getline(cin,s1);
//int len=strlen(s1);错误//int len=length(s1);错误for(inti=s1.length()-1;i>=0;i--)//string型长度计算S1.length();     {
cout<<s1[i];
    }
return0;
}

#include<bits/stdc++.h>usingnamespacestd;
intmain()
{
strings1;    intn;    intm;
cin>>n;
cin>>s1;
cin>>m;
strings2=s1.substr(m-1);
cout<<s2;
return0;
}

#include<bits/stdc++.h>usingnamespacestd;
intmain()
{
stringa[3];
cin>>a[0];
cin>>a[1];
cin>>a[2];
sort(a,a+3);
cout<<a[0]<<endl;
cout<<a[1]<<endl;
cout<<a[2]<<endl;
return0;
}