View Compilation Error

0_0_32032032_1616.cpp: In function 'void unio(int, int)':
0_0_32032032_1616.cpp:19:9: error: 'ran' was not declared in this scope
         ran[ny]+=ran[nx];       
         ^
0_0_32032032_1616.cpp: In function 'int main()':
0_0_32032032_1616.cpp:29:13: error: 'ran' was not declared in this scope
             ran[i]=1;       
             ^
0_0_32032032_1616.cpp:46:21: error: 'ran' was not declared in this scope
             if(max1<ran[i])                
                     ^