View Compilation Error

0_0_36518880_24774.cpp: In function 'int main()':
0_0_36518880_24774.cpp:23:17: error: 'y' was not declared in this scope
                 y[++cnt]=c[j].y;
                 ^
0_0_36518880_24774.cpp:25:18: error: 'y' was not declared in this scope
             sort(y+1,y+cnt+1);
                  ^