1375. Number of Times Binary String Is Prefix-Aligned

[Arya-Gupta]

https://leetcode.com/problems/number-of-times-binary-string-is-prefix-aligned/

[Thanh-Van-2001]

class Solution {
public:
int numTimesAllBlue(vector < int > & flips) {
int now = 0; // E flips i Wallegff
int exp = 1;
int res = 0;
for(int i = 0;i < flips.size();i++){
now += flips[i];
if(now == exp){
res++;
}
exp += i + 2;
}
return res;
}
};