<commit_before>//g++-5 --std=c++11 -g -Wall -Werror -o ds_uf_number_connected_components ds_uf_number_connected_components.cc

/**
 * @file Number of Connected Components
 * @brief Given an undirected graph return the number of connected components
 */

// https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/

#include <iostream>          /* std::cout                    */
#include <algorithm>         /* std::max                     */
#include <vector>            /* std::vector                  */
#include <stack>             /* std::stack                   */
#include <unordered_set>     /* std::unordered_set container */<commit_msg>Fix Travis build break<commit_after>//g++-5 --std=c++11 -g -Wall -Werror -o ds_uf_number_connected_components ds_uf_number_connected_components.cc

/**
 * @file Number of Connected Components
 * @brief Given an undirected graph return the number of connected components
 */

// https://leetcode.com/problems/number-of-connected-components-in-an-undirected-graph/

#include <iostream>          /* std::cout                    */
#include <algorithm>         /* std::max                     */
#include <vector>            /* std::vector                  */
#include <stack>             /* std::stack                   */
#include <numeric>           /* std::iota                    */
#include <unordered_set>     /* std::unordered_set container */
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