Compilare: user.cpp: In function ‘void frsir(int)’: user.cpp:15:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] {for(int i=0;i<strlen(s[x]);i++) ^ user.cpp: In function ‘void citire()’: user.cpp:23:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(s[i])==stm&&strcmp(s[i],s[maxi])<0) ^ user.cpp:27:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(s[i])>stm) ^ user.cpp: In function ‘int issub(int, int)’: user.cpp:41:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(strlen(s[i])>st) ^