/in/foo.c: In function 'main':
/in/foo.c:13:1: warning: implicit declaration of function 'FindmnMax' [-Wimplicit-function-declaration]
 FindmnMax(a,n);
 ^~~~~~~~~
/tmp/ccCDyoYM.o: In function `main':
foo.c:(.text.startup+0x72): undefined reference to `FindmnMax'
collect2: error: ld returned 1 exit status