/in/foo.c: In function 'mnin':
/in/foo.c:11:21: warning: variable 'sum' set but not used [-Wunused-but-set-variable]
int n[10000],i,j,k,sum,w,pi,g;
^~~
/in/foo.c:11:19: warning: unused variable 'k' [-Wunused-variable]
int n[10000],i,j,k,sum,w,pi,g;
^
/in/foo.c: In function 'swnp':
/in/foo.c:8:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
/in/foo.c: In function 'mnin':
/in/foo.c:39:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
/usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status