0_0_25765801_10747.cpp: In function 'void unite(int, int)': 0_0_25765801_10747.cpp:49:9: error: 'fx' was not declared in this scope par[fx] = fy; ^ 0_0_25765801_10747.cpp:49:15: error: 'fy' was not declared in this scope par[fx] = fy; ^