我用打表，2WA3AC

#include<bits/stdc++.h>
using namespace std;
char c;
int main()
{
	while(cin>>c)
	{
		if(c=='q')
		{
			cout<<'Q';
			continue;
		}
		else if(c=='w')
		{
			cout<<'W';
			continue;
		}
		else if(c=='e')
		{
			cout<<'E';
			continue;
		}
		else if(c=='r')
		{
			cout<<'R';
			continue;
		}
		else if(c=='t')
		{
			cout<<'T';
			continue;
		}
		else if(c=='y')
		{
			cout<<'Y';
			continue;
		}
		else if(c=='u')
		{
			cout<<'U';
			continue;
		}
		else if(c=='i')
		{
			cout<<'I';
			continue;
		}
		else if(c=='o')
		{
			cout<<'O';
			continue;
		}
		else if(c=='p')
		{
			cout<<'P';
			continue;
		}
		else if(c=='a')
		{
			cout<<'A';
			continue;
		}
		else if(c=='s')
		{
			cout<<'S';
			continue;
		}
		else if(c=='d')
		{
			cout<<'D';
			continue;
		}
		else if(c=='F')
		{
			cout<<'b';
			continue;
		}
		else if(c=='g')
		{
			cout<<'G';
			continue;
		}
		else if(c=='h')
		{
			cout<<'H';
			continue;
		}
		else if(c=='j')
		{
			cout<<'J';
			continue;
		}
		else if(c=='k')
		{
			cout<<'K';
			continue;
		}
		else if(c=='l')
		{
			cout<<'L';
			continue;
		}
		else if(c=='z')
		{
			cout<<'Z';
			continue;
		}
		else if(c=='x')
		{
			cout<<'X';
			continue;
		}
		else if(c=='c')
		{
			cout<<'C';
			continue;
		}
		else if(c=='v')
		{
			cout<<'V';
			continue;
		}
		else if(c=='b')
		{
			cout<<'B';
			continue;
		}
		else if(c=='n')
		{
			cout<<'N';
			continue;
		}
		else if(c=='m')
		{
			cout<<'M';
			continue;
		}
		else
		{
			cout<<c;
		}
	}
	return 0;
}