Knapsack 0-1

giaunv · giaunv · commit 394011fdc4c1 · 2019-05-01T01:08:14.000+08:00
diff --git a/datastructure-algorithm-java-examples/src/main/java/com/hellokoding/algorithm/DP_Knapsack.java b/datastructure-algorithm-java-examples/src/main/java/com/hellokoding/algorithm/DP_Knapsack.java
@@ -9,10 +9,10 @@ int findMaxValueOfKnapSack(int[] values, int[] weights, int W, int N) {
                 if (i == 0 || w == 0) {
                     cache[i][w] = 0;
                 }
-                else if (weights[i-1] <= w) {
-                    cache[i][w] = Math.max(cache[i-1][w], cache[i-1][w-weights[i-1]] + values[i-1]);
-                } else {
+                else if (weights[i-1] > w) {
                     cache[i][w] = cache[i-1][w];
+                } else {
+                    cache[i][w] = Math.max(cache[i-1][w], cache[i-1][w-weights[i-1]] + values[i-1]);
                 }
             }
         }

Original file line number	Diff line number	Diff line change
`@@ -9,10 +9,10 @@ int findMaxValueOfKnapSack(int[] values, int[] weights, int W, int N) {`
`9`	`9`	`if (i == 0 \|\| w == 0) {`
`10`	`10`	`cache[i][w] = 0;`
`11`	`11`	`}`
`12`		`- else if (weights[i-1] <= w) {`
`13`		`- cache[i][w] = Math.max(cache[i-1][w], cache[i-1][w-weights[i-1]] + values[i-1]);`
`14`		`- } else {`
	`12`	`+ else if (weights[i-1] > w) {`
`15`	`13`	`cache[i][w] = cache[i-1][w];`
	`14`	`+ } else {`
	`15`	`+ cache[i][w] = Math.max(cache[i-1][w], cache[i-1][w-weights[i-1]] + values[i-1]);`
`16`	`16`	`}`
`17`	`17`	`}`
`18`	`18`	`}`