题解 | #首字母大写#

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


int main(){
    string str;
    while(getline(cin,str)){
        string::iterator it=str.begin();
        if(*it>='a' && *it<='z')
            *it-=32;
        for(it=str.begin();it!=str.end();it++){
            if(*it==' ' || *it=='\t' || *it=='\r' || *it=='\n')
                if(*(it+1)>='a' && *(it+1)<='z')
                    *(it+1)-=32;
        }
        cout<<str<<endl;
    }
    return 0;
}