Compilare: user.cpp: In function ‘int main()’: user.cpp:40:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d\n", &nrTests); ^ user.cpp:42:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s\n", s[0]); ^ user.cpp:43:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s\n", s[1]); ^ user.cpp:44:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%s\n", s[2]); ^ user.cpp: In function ‘void transfer(int, const char*)’: user.cpp:28:42: warning: ‘to’ may be used uninitialized in this function [-Wmaybe-uninitialized] ops[nrOps++] = opValues[from * 3 + to]; ~~~~~~~~~^~~~