BOJ 2754 - 학점계산 [C++]

문제

링크

풀이

#include <iomanip>
#include <iostream>
#include <string>
using namespace std;
 
void solve(void) {
  string s; cin >> s;
 
  float ans = 0.0;
 
  if (s[0] == 'A') ans += 4.0;
  else if (s[0] == 'B') ans += 3.0;
  else if (s[0] == 'C') ans += 2.0;
  else if (s[0] == 'D') ans += 1.0;
 
  if (s[1] == '+') ans += 0.3;
  else if (s[1] == '-') ans -= 0.3;
 
  cout << fixed << setprecision(1) << ans;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}