题解 | 简写单词

#include <iostream>
#include<string>
using namespace std;
int main() {
    string s;
    getline(cin,s);
    cout<<(char)toupper(s[0]);
    for(int i=0;i<s.size();++i){
        if(s[i]==' '){
            cout<<(char)toupper(s[i+1]);
        }
    }
}