friends.cpp: In function 'void friends(int*, int, int*, int*)':
friends.cpp:5:11: error: 'i' was not declared in this scope
friends.cpp:5:7: warning: unused variable 't' [-Wunused-variable]
grader_friends.c: In function 'int main()':
grader_friends.c:46:15: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
grader_friends.c:52:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
grader_friends.c:53:68: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
grader_friends.c: At global scope:
grader_friends.c:18:12: warning: '__now__' defined but not used [-Wunused-variable]