Compilare: user.cpp: In function ‘int main()’: user.cpp:17:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<strlen(s);i++) ^ user.cpp:20:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<strlen(s);i++) ^ user.cpp:14:11: warning: unused variable ‘ingnr’ [-Wunused-variable] int i,ingnr=1,in_cuv=0,timp=0; ^ user.cpp:14:19: warning: unused variable ‘in_cuv’ [-Wunused-variable] int i,ingnr=1,in_cuv=0,timp=0; ^ user.cpp:15:18: warning: unused variable ‘sn’ [-Wunused-variable] char s[1000],sn[1000],intermed[20]; ^ user.cpp: At global scope: user.cpp:11:6: warning: ‘v’ defined but not used [-Wunused-variable] }v[100]; ^