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Copy pathMielageCounter.java
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68 lines (53 loc) · 1.67 KB
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import java.util.Arrays;
public class MielageCounter {
public static void main(String[] args) {
int[] a = new int[]{8, 9, 9, 5, 0};
updateMileageCounter(a, 1);
System.out.println(Arrays.toString(a));
int[] b = new int[]{8, 9, 9, 5, 0};
updateMileageCounter(b, 2);
System.out.println(Arrays.toString(b));
int[] c = new int[]{9, 9, 9, 9, 9, 9, 9, 9, 9, 9};
updateMileageCounter(c, 1);
System.out.println(Arrays.toString(c));
int[] d = new int[]{9, 9, 9, 9, 9, 9, 9, 9, 9, 9};
updateMileageCounter(d, 13);
System.out.println(Arrays.toString(d));
d = new int[]{9, 9, 9, 9};
updateMileageCounter(d, 13);
System.out.println(Arrays.toString(d));
}
static void updateMileageCounter(int[] a, int miles) {
for (int i = 0; i < a.length && miles > 0; i++) {
miles = a[i] + miles;
if (miles < 10) {
a[i] = miles;
break;
} else {
a[i] = miles % 10;
miles /= 10;
}
}
}
static void updateMileageCounter1(int[] a, int miles) {
while (miles > 0) {
int i = 0;
do {
a[i] = (a[i] + 1) % 10;
i++;
} while (a[i-1] == 0 && i < a.length);
miles--;
}
}
static void updateMileageCounter2(int[] a, int miles) {
long totalMiles = 0;
for (int i = a.length - 1; i >= 0; i--) {
totalMiles = totalMiles * 10 + a[i];
}
totalMiles += miles;
for (int j = 0; j < a.length; j++) {
a[j] = (int)(totalMiles % 10);
totalMiles /= 10;
}
}
}