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[mintheon] Week2 #750
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[mintheon] Week2 #750
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,17 @@ | ||
class Solution { | ||
public int climbStairs(int n) { | ||
int[] stepCount = new int[n + 1]; | ||
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if(n == 1) { | ||
return 1; | ||
} | ||
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stepCount[1] = 1; | ||
stepCount[2] = 2; | ||
for(int i = 3; i <= n; i++) { | ||
stepCount[i] = stepCount[i - 1] + stepCount[i - 2]; | ||
} | ||
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return stepCount[n]; | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,13 @@ | ||
import java.util.Arrays; | ||
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class Solution { | ||
public boolean isAnagram(String s, String t) { | ||
char[] sChar = s.toCharArray(); | ||
char[] tChar = t.toCharArray(); | ||
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Arrays.sort(sChar); | ||
Arrays.sort(tChar); | ||
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return Arrays.equals(sChar, tChar); | ||
} | ||
} |
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초기값을 이용한 early return인데, 저라면 dp를 잘 이해하고 있다고 어필하기 위해 n == 2 인 경우도 추가할 것 같습니다.