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984.java
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984.java
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__________________________________________________________________________________________________
sample 0 ms submission
class Solution {
public void append(StringBuilder sb, char ch, int count) {
while(count-->0) sb.append(ch);
}
public String strWithout3a3b(int A, int B) {
StringBuilder sb = new StringBuilder();
char maxCh = (A>=B) ? 'a' : 'b';
char minCh = maxCh == 'a' ? 'b' : 'a';
int maxCount = A>=B ? A : B;
int minCount = maxCount == A ? B : A;
while(minCount>0 || maxCount>0) {
if(maxCount == minCount) {
for(int i=0; i<maxCount; i++) {
sb.append(minCh); sb.append(maxCh);
}
break;
} else {
int m1 = maxCount > 2 ? 2 : maxCount;
int m2 = minCount > 1 ? 1 : minCount;
if(m1 > 0) {
append(sb, maxCh, m1);
maxCount-=m1;
}
if(m2 > 0) {
append(sb, minCh, m2) ;
minCount-=m2;
}
}
}
return new String(sb);
}
}
__________________________________________________________________________________________________
sample 35524 kb submission
class Solution {
public String strWithout3a3b(int A, int B) {
StringBuilder ans = new StringBuilder();
while (A > 0 || B > 0) {
boolean writeA = false;
int L = ans.length();
if (L >= 2 && ans.charAt(L-1) == ans.charAt(L-2)) {
if (ans.charAt(L-1) == 'b')
writeA = true;
} else {
if (A >= B)
writeA = true;
}
if (writeA) {
A--;
ans.append('a');
} else {
B--;
ans.append('b');
}
}
return ans.toString();
}
}
__________________________________________________________________________________________________