[C++] C++字符串判等

#include <iostream>
#include <cstring>
using namespace std;
int main(){
char a[101],b[101],c[101],d[101];
cin.getline(a,101);
cin.getline(b,101);
int k=0;
for(int i=0;i<strlen(a);i++){
if(a[i]!=' '){
if(a[i]>='a'&&a[i]<='z') c[k++]=a[i]-32;
else c[k++]=a[i];
}
}
int h=0;
for(int i=0;i<strlen(b);i++){
if(b[i]!=' '){
if(b[i]>='a'&&b[i]<='z') d[h++]=b[i]-32;
else d[h++]=b[i];
}
}
if(strcmp(c,d)) cout<<"NO"<<endl;
else cout<<"YES"<<endl;
return 0;
}