面试题17.10 主要元素
class Solution {
public int majorityElement(int[] nums) {
int i, c, count;
c = nums[0];
count = 1;
for (i = 1; i < nums.length; i++) {
if (nums[i] == c) {
count += 1;
}
else {
if (count > 0) {
count -= 1;
} else {
c = nums[i];
count = 1;
}
}
}
count = 0;
for (i = 0; i < nums.length; i++) {
if (nums[i] == c)
count += 1;
}
if (count > nums.length / 2 )
return c;
else
return -1;
}
}