Main.cc: In function ‘int main()’:
Main.cc:12:11: error: ‘n2’ was not declared in this scope
int n1=0;n2=1,d;
^~
Main.cc:12:11: note: suggested alternative: ‘n1’
int n1=0;n2=1,d;
^~
n1
Main.cc:12:16: error: ‘d’ was not declared in this scope
int n1=0;n2=1,d;
^
Main.cc:25:4: error: ‘gcd’ was not declared in this scope
d=gcd(n1,n2);
^~~
Main.cc:25:4: note: suggested alternative: ‘gcvt’
d=gcd(n1,n2);
^~~
gcvt
Main.cc:13:7: warning: unused variable ‘s’ [-Wunused-variable]
char s[20];
^