Compilare: user.cpp: In function ‘int main()’: user.cpp:34:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d", &n, &L); ^ user.cpp:36:49: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fi, "%d%d", &timp[i][0], &timp[i][1]); ^ user.cpp:14:26: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] int i, min=2000000000, poz; ^ user.cpp:14:26: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:6:59: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] return path[a][b][poz][0]*timp[poz][0]+path[a][b][poz][1]*timp[poz][1]; ^ user.cpp:14:26: note: ‘poz’ was declared here int i, min=2000000000, poz; ^ user.cpp:6:59: warning: ‘poz’ may be used uninitialized in this function [-Wmaybe-uninitialized] return path[a][b][poz][0]*timp[poz][0]+path[a][b][poz][1]*timp[poz][1]; ^ user.cpp:14:26: note: ‘poz’ was declared here int i, min=2000000000, poz; ^