题解 | #放苹果#
字符个数统计
http://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
#include <cstdio>
#include <cstring>
using namespace std;
int main() {
char ch;
int arr[130];
memset(arr, 0, sizeof(arr));
while(EOF != scanf("%c", &ch)) {
arr[ch] = 1;
}
int sum = 0;
for(int i=0; i<128; i++){
sum += arr[i];
}
printf("%d", sum-arr['\n']);
return 0;
}
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