View Compilation Error

0_0_17146915_20893.cpp: In function 'long long int solve()':
0_0_17146915_20893.cpp:77:2: error: 's' was not declared in this scope
  s[0] = 1 ; t[0] = 1;
  ^
0_0_17146915_20893.cpp:77:13: error: 't' was not declared in this scope
  s[0] = 1 ; t[0] = 1;
             ^
0_0_17146915_20893.cpp:84:2: error: 'q' was not declared in this scope
  q[0][1] = 1;
  ^