Compilare: user.cpp: In function ‘int swapHeap(int, int)’: user.cpp:24: warning: no return statement in function returning non-void user.cpp: In function ‘int upHeap(int)’: user.cpp:32: warning: no return statement in function returning non-void user.cpp: In function ‘int downHeap(int)’: user.cpp:49: warning: no return statement in function returning non-void user.cpp: In function ‘int dijkstra()’: user.cpp:74: warning: no return statement in function returning non-void user.cpp: In function ‘int main()’: user.cpp:81: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:83: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result