Compilare: user.cpp: In function ‘long long int nratoi(char*)’: user.cpp:15:18: warning: NULL used in arithmetic [-Wpointer-arith] while (x[i]!=NULL) ^ user.cpp: In function ‘void rez2(long long int, char*)’: user.cpp:24:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nr) ^ user.cpp: In function ‘void rez22(long long int, char*)’: user.cpp:72:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nr!=0) ^ user.cpp: In function ‘void rez5(long long int, char*)’: user.cpp:86:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nratoi(y)) ^ user.cpp: In function ‘void rez6(long long int, char*)’: user.cpp:124:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nratoi(y)) ^ user.cpp: In function ‘void rez7(long long int, char*)’: user.cpp:137:8: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (lin[0]!=0) ^ user.cpp: In function ‘void rez8(long long int, char*)’: user.cpp:154:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nratoi(y)) ^ user.cpp: In function ‘void rez9(long long int, char*)’: user.cpp:171:12: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (nratoi(y)) ^