Compilare: user.cpp: In function ‘void mergeDealers(int, int, int&)’: user.cpp:49:13: warning: variable ‘l2’ set but not used [-Wunused-but-set-variable] int l1, l2; ^ user.cpp: In function ‘void selectare()’: user.cpp:224:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(cerere[i] > dealers[i].cars.size()) ^ user.cpp: In function ‘void citire()’: user.cpp:84:43: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d\n", &n, &a, &r, &k); ^ user.cpp:94:32: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fgets(tmp, 3300, stdin); ^ user.cpp: In function ‘int main()’: user.cpp:240:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("showroom.in", "r", stdin); ^ user.cpp:241:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("showroom.out", "w", stdout); ^