Compilare: user.cpp: In function ‘int main()’: user.cpp:37:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for (i = M; i; --i) A[i] = A[i-1]; A[0] = ' '; ^~~ user.cpp:37:40: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ for (i = M; i; --i) A[i] = A[i-1]; A[0] = ' '; ^ user.cpp:38:5: warning: this ‘for’ clause does not guard... [-Wmisleading-indentation] for (i = N; i; --i) B[i] = B[i-1]; B[0] = ' '; ^~~ user.cpp:38:40: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the ‘for’ for (i = N; i; --i) B[i] = B[i-1]; B[0] = ' '; ^ user.cpp:28:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.in", "r", stdin); ^ user.cpp:29:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("strmatch.out", "w", stdout); ^ user.cpp:31:31: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(A, sizeof(A), stdin); ^ user.cpp:32:31: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(B, sizeof(B), stdin); ^