1124. Beginner Series #2 Clock

Clock shows h hours, m minutes and s seconds after midnight.

Your task is to write a function which returns the time since midnight in milliseconds.

Example:

h = 0
m = 1
s = 1

result = 61000

Input constraints:

• 0 <= h <= 23
• 0 <= m <= 59
• 0 <= s <= 59

Solution:

int past(int h, int m, int s) {
  int hm = h*60+m;
  int ms = hm*60+s;
  int result = ms*1000;
  return result;
}