A2.数方格

有需要的自己来拿吧

#include <iostream>
#include <string>
#include <cctype>
using namespace std;
int main() {
ios::sync_with_stdio(false);
cin.tie(NULL);
string s;
if (cin >> s) {
int sum = 0;
int n = s.length();
for (int i = 0; i < n - 1; i) {
char n = s[i];
char m = s[i + 1];
bool a = isupper(n) && isupper(m);
bool b = islower(n) && islower(m);
if (a || b) {
sum;
}
}
cout << sum << endl;
}
return 0;
}