Main.cc: In function ‘int main()’: Main.cc:5:15: error: invalid conversion from ‘int’ to ‘const char*’ [-fpermissive] printf(260) ^ In file included from /usr/include/stdio.h:862:0, from /usr/include/c++/7/cstdio:42, from /usr/include/c++/7/ext/string_conversions.h:43, from /usr/include/c++/7/bits/basic_string.h:6361, from /usr/include/c++/7/string:52, from /usr/include/c++/7/bits/locale_classes.h:40, from /usr/include/c++/7/bits/ios_base.h:41, from /usr/include/c++/7/ios:42, from /usr/include/c++/7/ostream:38, from /usr/include/c++/7/iostream:39, from Main.cc:1: /usr/include/x86_64-linux-gnu/bits/stdio2.h:102:1: note: initializing argument 1 of ‘int printf(const char*, ...)’ printf (const char *__restrict __fmt, ...) ^~~~~~ Main.cc:5:15: warning: format not a string literal and no format arguments [-Wformat-security] printf(260) ^ Main.cc:6:1: error: expected ‘;’ before ‘}’ token } ^