Eroare de compilare: user.cpp: In function ‘int main()’: user.cpp:16:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<=strlen(sir)-1;i++) ^ user.cpp:17:43: error: invalid conversion from ‘const char*’ to ‘char*’ [-fpermissive] { cautare=strchr(spatiu.c_str(),sir[i]); ^ user.cpp:18:46: error: invalid conversion from ‘const char*’ to ‘char*’ [-fpermissive] cautare2=strchr(spatiu.c_str(),sir[i+1]); ^