否则输出2147483647
by hyacinthdreams @ 2024-02-03 14:53:00
即2的
31次方
−
1
by hyacinthdreams @ 2024-02-03 14:55:34
数组开小了
by hyacinthdreams @ 2024-02-03 14:57:32
开500010
by hyacinthdreams @ 2024-02-03 14:58:09
所以RE
by hyacinthdreams @ 2024-02-03 14:58:44
struct node
{
line l;
long long next;
} ls[500005];
long long head[500005];
long long dist[500005];
bool used[500005];
by hyacinthdreams @ 2024-02-03 15:02:30