View Compilation Error

0_0_39458300_4031.cpp: In function 'void solve()':
0_0_39458300_4031.cpp:43:15: error: 'n' was not declared in this scope
   43 |     for(int i=n;i<n*2;i++)a[i]=a[i-n];
      |               ^
0_0_39458300_4031.cpp:49:37: error: 'n' was not declared in this scope
   49 |     for(int i=0;i<(int)strlen(b)&&i+n<=m;i++){
      |                                     ^
0_0_39458300_4031.cpp:49:40: error: 'm' was not declared in this scope
   49 |     for(int i=0;i<(int)strlen(b)&&i+n<=m;i++){
      |                                        ^