BOJ 20104 - Timecard [C++]

문제

링크

풀이

#include "timecard.h"
 
static int N;
 
void init(int n) {
  N = n;
}
 
std::string convert(std::string s) {
  for (char &c : s) {
    if ('A' <= c && c <= 'Z') {
      c = c - 'A' + 'a';
    }
  }
  return s;
}