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Dota2Senate.java
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Dota2Senate.java
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/**
* 649. Dota2 Senate
* @author LBW
*/
public class Dota2Senate {
public String predictPartyVictory(String senate) {
int n = senate.length();
int nr = 0, nd = 0;
for (char c: senate.toCharArray()) {
if (c == 'R')
nr += 1;
else
nd += 1;
}
boolean[] isBanned = new boolean[n];
int idx = 0;
for (; nr != 0 && nd != 0; idx = (idx + 1) % n) {
if (isBanned[idx])
continue;
int j = (idx + 1) % n;
while (senate.charAt(j) == senate.charAt(idx) || isBanned[j])
j = (j + 1) % n;
isBanned[j] = true;
if (senate.charAt(j) == 'R')
nr -= 1;
else
nd -= 1;
}
if (nr > 0)
return "Radiant";
else
return "Dire";
}
}