Submission #1078889

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1078889	2024-08-28 07:49:13	hcng	Stranded Far From Home (BOI22_island)	C++14	100 / 100	102 ms	29612 KiB

island

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#include <bits/stdc++.h>
using namespace std;
#define int long long
char *p1, *p2, buf[1<<20];
#define gc() (p1==p2&&(p2=(p1=buf)+fread(buf,1,1<<20,stdin),p1==p2)?EOF:*p1++)
inline int read() {int x=0;char c=gc();while(!isdigit(c))c=gc();while(isdigit(c))x=x*10+c-'0',c=gc();return x;}
#define pc(c) putchar(c)
void write(int x) {if(x>9)write(x/10);pc('0'+x%10);}
int n, m;
int a[200010], b[200010];
vector<int> G[200010];
int dsu[200010], tag[200010], sum[200010];
int ans[200010], vis[200010];
int find(int u) {
    int r = (u == dsu[u]? u : find(dsu[u]));
    tag[u] |= tag[dsu[u]];
    if (tag[u]) ans[u] = 0;
    dsu[u] = r;
    return r;
}
signed main() {
    n = read(), m = read();
    for (int i = 1; i <= n; i++) {
        a[i] = read();
        dsu[i] = b[i] = i;
    }
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 15 / 15
• Subtask 4: 30 / 30
• Subtask 5: 35 / 35