Leetcode/src/main/java/com/fishercoder/solutions/secondthousand/_1432.java at master · fishercoder1534/Leetcode · GitHub

Name: Leetcode/src/main/java/com/fishercoder/solutions/secondthousand/_1432.java at master · fishercoder1534/Leetcode · GitHub
Rating: 4.9 (3915 reviews)
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packagecom.fishercoder.solutions.secondthousand;

publicclass_1432 {
publicstaticclassSolution1 {
publicintmaxDiff(intnum) {
intsmallest = getSmallest(num);
intbiggest = getBiggest(num);
returnbiggest - smallest;
 }

privateintgetBiggest(intnum) {
intfirstDigit = Integer.parseInt(Integer.toString(num).substring(0, 1));
if (firstDigit == 9) {
Stringremainder = Integer.toString(num).substring(1);
intnumberToChangeToNine = 0;
for (charc : remainder.toCharArray()) {
if (c == '9') {
continue;
 } else {
numberToChangeToNine = Integer.parseInt("" + c);
break;
 }
 }
StringBuildersb = newStringBuilder();
sb.append('9');
for (charc : remainder.toCharArray()) {
if (Integer.parseInt(c + "") == numberToChangeToNine) {
sb.append("9");
 } else {
sb.append(c);
 }
 }
returnInteger.parseInt(sb.toString());
 } else {
intnumberToChangeToNine = firstDigit;
StringBuildersb = newStringBuilder();
for (charc : Integer.toString(num).toCharArray()) {
if (Integer.parseInt("" + c) == numberToChangeToNine) {
sb.append("9");
 } else {
sb.append(c);
 }
 }
returnInteger.parseInt(sb.toString());
 }
 }

privateintgetSmallest(intnum) {
intfirstDigit = Integer.parseInt(Integer.toString(num).substring(0, 1));
if (firstDigit == 1) {
Stringremainder = Integer.toString(num).substring(1);
intnumberToChangeToZero = 0;
for (charc : remainder.toCharArray()) {
if (c == '0' || c == '1') {
continue;
 } else {
numberToChangeToZero = Integer.parseInt("" + c);
break;
 }
 }
StringBuildersb = newStringBuilder();
sb.append('1');
for (charc : remainder.toCharArray()) {
if (Integer.parseInt(c + "") == numberToChangeToZero) {
sb.append("0");
 } else {
sb.append(c);
 }
 }
returnInteger.parseInt(sb.toString());
 } else {
intnumberToChangeToOne = firstDigit;
StringBuildersb = newStringBuilder();
for (charc : Integer.toString(num).toCharArray()) {
if (Integer.parseInt("" + c) == numberToChangeToOne) {
sb.append("1");
 } else {
sb.append(c);
 }
 }
returnInteger.parseInt(sb.toString());
 }
 }
 }
}