g2401_2500.s2437_number_of_valid_clock_times.Solution Maven / Gradle / Ivy
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Java Solution for LeetCode algorithm problems, continually updating
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package g2401_2500.s2437_number_of_valid_clock_times;
// #Easy #String #Enumeration #2022_12_07_Time_0_ms_(100.00%)_Space_42.2_MB_(29.58%)
public class Solution {
public int countTime(String time) {
int[] counts = new int[] {3, 10, 0, 6, 10};
char[] ch = time.toCharArray();
int result = 1;
if (ch[0] == '2') {
counts[1] = 4;
}
if ((ch[1] - '0') > 3) {
counts[0] = 2;
}
if (ch[0] == '?' && ch[1] == '?') {
counts[0] = 1;
counts[1] = 24;
}
for (int i = 0; i < 5; i++) {
char ch1 = ch[i];
if (ch1 == '?') {
result *= counts[i];
}
}
return result;
}
}