View Compilation Error

0_0_14013706_15726.cpp: In function 'int main()':
0_0_14013706_15726.cpp:17:4: error: 'm' was not declared in this scope
    m=2*max+1;
    ^
0_0_14013706_15726.cpp:31:3: error: 't' was not declared in this scope
   t=n*(n+1);
   ^