Compilare: user.cpp: In function ‘int main()’: user.cpp:61:24: warning: overflow in implicit constant conversion [-Woverflow] d[i][j]=INF; ^ user.cpp:24:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d%d",&N,&M,&T); ^ user.cpp:29:40: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(IN,"%d%d%d",&X,&Y,&Type); ^