Compilare: user.c: In function ‘citire’: user.c:6: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result user.c:9: warning: ignoring return value of ‘scanf’, declared with attribute warn_unused_result user.c: In function ‘main’: user.c:54: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c:55: warning: ignoring return value of ‘freopen’, declared with attribute warn_unused_result user.c: In function ‘dijkstra’: user.c:19: warning: ‘poz’ may be used uninitialized in this function