CF427C Checkposts(tarjan求强连通)

每个强连通分量记最小值，及最小值的个数。

#include 
using namespace std;
#define N 100010
#define M 300010
#define inf 0x3f3f3f3f
#define ll long long
const int mod=1e9+7;
inline int read(){
    int x=0,f=1;char ch=getchar();
    while(ch<'0'||ch>'9'){if(ch=='-')f=-1;ch=getchar();}
    while(ch>='0'&&ch<='9') x=x*10+ch-'0',ch=getchar();
    return x*f;
}
int n,m,w[N],h[N],num=0,dfn[N],low[N],dfnum=0,bel[N],scc=0,sw[N],size[N];
ll ans1=0,ans2=1;
bool inq[N];
stackq;
struct edge{
    int to,next;
}data[M];
void tarjan(int x){
    dfn[x]=low[x]=++dfnum;q.push(x);inq[x]=1;
    for(int i=h[x];i;i=data[i].next){
        int y=data[i].to;
        if(!dfn[y]){tarjan(y);low[x]=min(low[x],low[y]);}
        else if(inq[y]) low[x]=min(low[x],dfn[y]);
    }
    if(dfn[x]==low[x]){
        ++scc;sw[scc]=inf;while(1){
            int y=q.top();q.pop();inq[y]=0;bel[y]=scc;
            if(w[y]==sw[scc]) size[scc]++;
            if(w[y]