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fix starting index of hamming weights dp solution #112

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fix starting index of hamming weights dp solution #112

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2 changes: 1 addition & 1 deletion java/Bit Manipulation/HammingWeightsOfIntegersDp.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ public int[] hammingWeightsOfIntegersDp(int n) {
// Base case: the number of set bits in 0 is just 0. We set dp[0] to
// 0 by initializing the entire DP array to 0.
int[] dp = new int[n + 1];
for (int x = 0; x < n + 1; x++) {
for (int x = 1; x < n + 1; x++) {
// 'dp[x]' is obtained using the result of 'dp[x >> 1]', plus
// the LSB of 'x'.
dp[x] = dp[x >> 1] + (x & 1);
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