[AcWing 768] 忽略大小写比较字符串大小
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#include
using namespace std;
string a, b;
int main()
{
getline(cin, a);
getline(cin, b);
for (char& c : a) c = tolower(c);
for (char& c : b) c = tolower(c);
if (a < b) puts("<");
else if (a > b) puts(">");
else puts("=");
return 0;
}
将字符串 s 转化为小写的简短写法：
- for ( char & c : s ) c = tolower(c);
- transform( s.begin(), s.end(), s.begin(), ::tolower );