제출 #139430

실행 실패 (제출 코드 컴파일 에러)

Main.c: In function ‘union_tree’:
Main.c:39:9: warning: implicit declaration of function ‘find_parent’; did you mean ‘find_parents’? [-Wimplicit-function-declaration]
   39 |     x = find_parent(x);
      |         ^~~~~~~~~~~
      |         find_parents
Main.c: In function ‘main’:
Main.c:46:14: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   46 |     int V,E; scanf("%d %d", &V, &E);
      |              ^~~~~~~~~~~~~~~~~~~~~~
Main.c:50:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   50 |         scanf("%d %d", &uchuukami[i].x, &uchuukami[i].y);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Main.c:55:9: warning: ignoring return value of ‘scanf’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   55 |         scanf("%d %d", &a, &b);
      |         ^~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccvaQPsa.o: in function `union_tree':
Main.c:(.text+0x144): undefined reference to `find_parent'
/usr/bin/ld: Main.c:(.text+0x150): undefined reference to `find_parent'
/usr/bin/ld: /tmp/ccvaQPsa.o: in function `main':
Main.c:(.text.startup+0x380): undefined reference to `find_parent'
/usr/bin/ld: Main.c:(.text.startup+0x390): undefined reference to `find_parent'
collect2: error: ld returned 1 exit status