题解 | #首字母大写#

#include <bits/stdc++.h>
using namespace std;

int main() {
    string s;
    while (getline(cin, s)) {
        if (s[0] >= 'a' && s[0] <= 'z')
            s[0] = s[0] - 32;
        int len = s.size();
        for (int i = 1; i < len; i++) {
            if (s[i] == ' ' || s[i] == '\t' || s[i] == '\r' || s[i] == '\n') {
                if (s[i + 1] >= 'a' && s[i + 1] <= 'z') {
                    s[i + 1] -= 32;
                }
            }
        }
        cout<<s<<endl;

    }
}
// 64 位输出请用 printf("%lld")