Compilare: user.cpp: In function ‘void readData()’: user.cpp:101:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d ", &N, &T); ^ user.cpp:102:12: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); assignValue(vec[++N]); ^ user.cpp:105:16: warning: ignoring return value of ‘char* gets(char*)’, declared with attribute warn_unused_result [-Wunused-result] gets(s); assignValue(vec[i]); ^ /tmp/ccbSKNuo.o: In function `readData()': user.cpp:(.text+0x31b): warning: the `gets' function is dangerous and should not be used.