Syntax

Programming Contest Resources

2D vector filled with zero

vector<vector<int>> vis(row,vector<int>(col,0));

Finding in vector

find(nums.begin(), nums.end(), curr_num + 1) != nums.end())

Unordered Set

unordered_set<int> num_set(nums.begin(), nums.end());

Find in Set

num_set.find(num) != num_set.end()

Not found in Set

num_set.find(num) == num_set.end()