Compilare: main.cpp: In function 'int main()': main.cpp:21:28: warning: statement has no effect [-Wunused-value] a[i][j]<a[i][k]+a[k][j];///poate sa nu fie muchie intre i si j,cu toate astea eu poate pot sa ajung de la i la j prin noduri intremediare ~~~~~~~^~~~~~~~~~~~~~~~ main.cpp:13:22: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&n); ^ main.cpp:16:36: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(f,"%d",&a[i][j]); ^