Compilare: user.cpp: In function ‘int main()’: user.cpp:69:43: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[5500]’ [-Wformat=] for (i=1;i<=n;i++) {scanf("%s",&sir[i]); r[i]=i;} ^ user.cpp:75:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (strlen(sir[i])==x) i--; ^ user.cpp:66:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.in","r",stdin); ^ user.cpp:67:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("interesant.out","w",stdout); ^ user.cpp:68:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%ld%ld",&p,&n); ^ user.cpp:69:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (i=1;i<=n;i++) {scanf("%s",&sir[i]); r[i]=i;} ^