Compilare: user.cpp: In function ‘int main()’: user.cpp:32:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < strlen(a); ++i) ^ user.cpp:19:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("joben.out", "w", stdout); ^ user.cpp:23:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%d", &nrSiruri); ^ user.cpp:28:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%s", a); ^ user.cpp:29:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in, "%s", b); ^