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@@ -1,32 +1,55 @@
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-
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2
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-
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3
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1
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4
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2
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public class NumberUtilities {
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5
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-
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6
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3
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public static String getRange(int start) {
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7
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- return null;
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4
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+ String range = "";
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5
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+ for(int i=0; i<start; i++){
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+ range += i;
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+ }
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+ return range;
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}
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9
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-
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+
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public static String getRange(int start, int stop) {
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11
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- return null;
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12
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- }
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12
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+ String range = "";
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+
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+ for(int i=start; i<stop; i++){
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+ range += i;
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+ }
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+
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+ return range;
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+ }
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21
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15
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22
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public static String getRange(int start, int stop, int step) {
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- return null;
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+ String range = "";
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+
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+ for(int i=start; i<stop; i+=step) {
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+ range += i;
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+ }
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+ return range;
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}
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-
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30
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+
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19
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31
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public static String getEvenNumbers(int start, int stop) {
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20
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- return null;
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32
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+ //start = (start % 2 == 1) ? start + 1 : start;
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33
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+
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+ if (start % 2 == 0) {
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35
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+ return getRange(start, stop, 2);
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36
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+ } else {
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37
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+ return getRange(start + 1, stop, 2);
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+ }
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39
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}
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22
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40
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23
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-
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24
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41
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public static String getOddNumbers(int start, int stop) {
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25
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- return null;
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+ start = (start % 2 == 0) ? start + 1 : start;
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+ return getRange(start, stop, 2);
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26
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}
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45
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-
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46
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public static String getExponentiations(int start, int stop, int exponent) {
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30
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- return null;
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+
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+ String range = "";
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+
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+ for(int i=start; i<stop + 1; i++) {
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+ range += (int)Math.pow(i, exponent);
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+ }
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+ return range;
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31
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54
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}
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32
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55
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}
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