c++怎么做选票统计？

#include<iostream>

using namespace std

int main()

{

int result[5] = {0, 0, 0, 0, 0}

int num

char ch

cin >>num

for(int i = 1i <= numi++)

{

cin >>ch

if(ch != ' ' &&ch != '\n')

{

if(ch >= 'A' &&ch <= 'D')

result[ch - 'A']++

else

result[4]++

}

else

i--

}

for(int i = 0i <4i++)

{

cout <<char( 'A' + i) <<" " <<result[i] <<endl

}

cout <<"F " <<result[4] <<endl

return 0

}

main()

{

int i,a=0,b=0,c=0,d=0

char a[20]

printf("")

for(i=0i<20i++)

{

scanf("%c",&a[i])

switch(a[i])

{

case 'A':a++i++break

case 'B':b++i++break

case 'C':c++i++break

case 'D':d++i++break

default:printf("选票无效！请重新输入\n")break

}

}

printf("A获得%d张选票\n",a)

printf("B获得%d张选票\n",b)

printf("C获得%d张选票\n",c)

printf("D获得%d张选票\n",d)

}

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