Compilare: user.cpp: In function ‘int main()’: user.cpp:35:22: warning: format ‘%s’ expects argument of type ‘char*’, but argument 2 has type ‘char (*)[9]’ [-Wformat=] scanf("%s",&s); lung=strlen(s); x=0; ^ user.cpp:27:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("exp.in","r",stdin); ^ user.cpp:31:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d\n",&m,&n); ^ user.cpp:35:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%s",&s); lung=strlen(s); x=0; ^