#include <bits/stdc++.h>

#include <gtest/gtest.h>

using namespace std;

class Solution {

public:

int findMaxLength(vector<int> &nums) {

unordered_map<int, int> mm;

int count = 0;

int ret = 0;

mm[0] = -1;

for (int i = 0; i < nums.size(); i++) {

if (nums[i] == 0) {

count += -1;

} else {

count += 1;

}

if (mm.count(count) > 0) {

ret = max(ret, i - mm[count]);

} else {

mm[count] = i;

}

}

return ret;

}

};

struct T {

};

TEST(Solution, test) {

T ts[] = {

{

},

};

Solution solution;

for (T t : ts) {

}

}

int main() {

testing::InitGoogleTest();

return RUN_ALL_TESTS();

}