Borderou de evaluare (job #523073)

Compilare: user.cpp: In function 'int backtracking(int)': user.cpp:12:10: warning: unused variable 'ok' [-Wunused-variable] user.cpp: In function 'int main()': user.cpp:34:7: warning: variable 'i' set but not used [-Wunused-but-set-variable] user.cpp:34:10: warning: unused variable 'y' [-Wunused-variable] user.cpp:34:18: warning: unused variable 'm' [-Wunused-variable] user.cpp:37:87: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]