Compilare: user.cpp: In function ‘bool IsOkay(int)’: user.cpp:38:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (i == n-1) ^ user.cpp: In function ‘int main()’: user.cpp:52:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[10010]’ [-Wformat=] fscanf(f, "%s", &a); ^ user.cpp:53:23: warning: format ‘%s’ expects argument of type ‘char*’, but argument 3 has type ‘char (*)[10010]’ [-Wformat=] fscanf(f, "%s", &b); ^ user.cpp:51:31: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d %d", &n, &m); ^ user.cpp:52:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", &a); ^ user.cpp:53:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%s", &b); ^