View Compilation Error

0_0_23109193_14562.cpp: In function 'int main()':
0_0_23109193_14562.cpp:95:25: error: 'dexy' was not declared in this scope
    if((abs(desx-sx)+abs(dexy-dy))%2!=(t%2))
                         ^
0_0_23109193_14562.cpp:95:30: error: 'dy' was not declared in this scope
    if((abs(desx-sx)+abs(dexy-dy))%2!=(t%2))
                              ^