update 70

fishercoder1534 · fishercoder1534 · commit 1e2c0145fa19 · 2024-06-17T08:23:27.000-07:00
diff --git a/src/main/java/com/fishercoder/solutions/firstthousand/_70.java b/src/main/java/com/fishercoder/solutions/firstthousand/_70.java
@@ -29,14 +29,14 @@ public int climbStairs(int n) {
             if (n == 1) {
                 return n;
             }
-            int stepOne = 1;
-            int stepTwo = 2;
+            int secondLastStep = 1;
+            int lastStep = 2;
             for (int i = 3; i <= n; i++) {
-                int tmp = stepTwo;
-                stepTwo = stepOne + stepTwo;
-                stepOne = tmp;
+                int tmp = lastStep;
+                lastStep = secondLastStep + lastStep;
+                secondLastStep = tmp;
             }
-            return stepTwo;
+            return lastStep;
         }
     }
 }

Original file line number	Diff line number	Diff line change
`@@ -29,14 +29,14 @@ public int climbStairs(int n) {`
`29`	`29`	`if (n == 1) {`
`30`	`30`	`return n;`
`31`	`31`	`}`
`32`		`- int stepOne = 1;`
`33`		`- int stepTwo = 2;`
	`32`	`+ int secondLastStep = 1;`
	`33`	`+ int lastStep = 2;`
`34`	`34`	`for (int i = 3; i <= n; i++) {`
`35`		`- int tmp = stepTwo;`
`36`		`- stepTwo = stepOne + stepTwo;`
`37`		`- stepOne = tmp;`
	`35`	`+ int tmp = lastStep;`
	`36`	`+ lastStep = secondLastStep + lastStep;`
	`37`	`+ secondLastStep = tmp;`
`38`	`38`	`}`
`39`		`- return stepTwo;`
	`39`	`+ return lastStep;`
`40`	`40`	`}`
`41`	`41`	`}`
`42`	`42`	`}`