题解 | #统计大写字母个数#

#include <algorithm>

using namespace std;

int main() {
    string str;
    while(getline(cin,str)){
        int k=0;
        int n = str.size();
        for(int i = 0;i<n;i++){
            if(str[i]>='A'&&(str[i]<='Z'))k++;
        }
        cout<<k<<endl;
    }
}