답안 #207256

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
207256 2020-03-06T20:41:27 Z MvC Pipes (BOI13_pipes) C++11
65 / 100
363 ms 131076 KB
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#define rc(x) return cout<<x<<endl,0
#define pb push_back
#define mkp make_pair
#define in insert
#define er erase
#define fd find
#define fr first
#define sc second
typedef long long ll;
typedef long double ld;
const ll INF=0x3f3f3f3f3f3f3f3f;
const ll llinf=(1LL<<62);
const int inf=(1<<30);
const int nmax=5e5+50;
const int mod=1e9+7;
using namespace std;
int n,m,i,ex[nmax],ey[nmax],deg[nmax],vl[nmax],vl1[nmax],rs[nmax],viz[nmax],g[nmax],cur,x,y,st;
vector<int>vc,a[nmax];
queue<int>q;
int main()
{
	//freopen("sol.in","r",stdin);
	//freopen("sol.out","w",stdout);
	//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	ios_base::sync_with_stdio(false);cin.tie(0);cerr.tie(0);cout.tie(0);
	cin>>n>>m;
	if(m>n)rc(0);
	for(i=1;i<=n;i++)cin>>g[i];
	for(i=1;i<=m;i++)
	{
		cin>>ex[i]>>ey[i];
		a[ex[i]].pb(i);
		a[ey[i]].pb(i);
	}
	for(i=1;i<=n;i++)
	{
		deg[i]=(int)a[i].size();
		if(deg[i]==1)q.push(i),viz[i]=1;
	}
	while(!q.empty())
	{
		x=q.front();
		q.pop();
		for(i=0;i<(int)a[x].size();i++)
		{
			y=ex[a[x][i]]^ey[a[x][i]]^x;
			if(!deg[y])continue;
			rs[a[x][i]]=2*(g[x]-vl[x]);
			vl[y]+=g[x]-vl[x];
			vl[x]=g[x];
			deg[y]--;
			deg[x]--;
			if(deg[y]==1)
			{
				viz[y]=1;
				q.push(y);
			}
		}
	}
	x=0;
	for(i=1;i<=n;i++)if(deg[i])x=i;
	st=x;
	if(st)
	{
		while(1)
		{
			for(i=0;i<(int)a[x].size();i++)
			{
				y=ex[a[x][i]]^ey[a[x][i]]^x;
				if(!deg[y])continue;
				vc.pb(a[x][i]);
				x=y;
				break;
			}
			if(st==x)break;
		}
		if((int)vc.size()&1)rc(0);
		for(i=1;i<=n;i++)vl1[i]=vl[i];
		x=st;
		for(i=0;i<(int)vc.size();i++)
		{
			y=ex[vc[i]]^ey[vc[i]]^x;
			vl1[y]+=g[x]-vl1[x];
			vl1[x]=g[x];
			x=y;
		}
		cur=(g[x]-vl1[x])/2;
		x=st;
		for(i=0;i<(int)vc.size();i++)
		{
			y=ex[vc[i]]^ey[vc[i]]^x;
			cur+=g[x]-vl[x];
			vl[y]+=cur;
			vl[x]+=cur;
			rs[vc[i]]=2*cur;
			cur=0;
			x=y;
		}
	}
	for(i=1;i<=m;i++)cout<<rs[i]<<'\n';
	return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 12152 KB Output is correct
2 Correct 12 ms 12156 KB Output is correct
3 Correct 13 ms 12152 KB Output is correct
4 Correct 88 ms 18652 KB Output is correct
5 Correct 14 ms 12152 KB Output is correct
6 Correct 13 ms 12152 KB Output is correct
7 Correct 15 ms 12152 KB Output is correct
8 Correct 12 ms 12152 KB Output is correct
9 Correct 13 ms 12152 KB Output is correct
10 Correct 13 ms 12152 KB Output is correct
11 Correct 13 ms 12280 KB Output is correct
12 Correct 13 ms 12152 KB Output is correct
13 Correct 75 ms 17416 KB Output is correct
14 Correct 93 ms 18460 KB Output is correct
15 Correct 92 ms 18780 KB Output is correct
16 Correct 78 ms 17784 KB Output is correct
17 Correct 96 ms 18652 KB Output is correct
18 Correct 104 ms 18780 KB Output is correct
19 Correct 93 ms 18552 KB Output is correct
20 Correct 13 ms 12152 KB Output is correct
21 Correct 13 ms 12152 KB Output is correct
22 Correct 89 ms 18728 KB Output is correct
23 Correct 71 ms 17400 KB Output is correct
24 Correct 86 ms 18776 KB Output is correct
25 Correct 73 ms 17656 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Runtime error 291 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
2 Runtime error 293 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Runtime error 332 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
4 Correct 13 ms 12024 KB Output is correct
5 Correct 12 ms 12024 KB Output is correct
6 Correct 12 ms 12024 KB Output is correct
7 Runtime error 286 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
8 Runtime error 301 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
9 Runtime error 290 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
10 Correct 13 ms 12024 KB Output is correct
11 Correct 13 ms 12024 KB Output is correct
12 Correct 12 ms 12024 KB Output is correct
13 Correct 13 ms 12024 KB Output is correct
14 Runtime error 305 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
15 Runtime error 290 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
16 Runtime error 294 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
17 Runtime error 290 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
18 Correct 13 ms 12152 KB Output is correct
19 Correct 13 ms 12024 KB Output is correct
20 Correct 13 ms 12024 KB Output is correct
21 Correct 12 ms 12024 KB Output is correct
22 Runtime error 295 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
23 Runtime error 326 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
24 Runtime error 338 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
25 Runtime error 337 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
26 Correct 13 ms 12024 KB Output is correct
27 Correct 12 ms 12024 KB Output is correct
28 Correct 12 ms 12152 KB Output is correct
29 Correct 12 ms 12024 KB Output is correct
30 Runtime error 350 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
31 Runtime error 334 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Runtime error 363 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
33 Runtime error 333 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
34 Correct 12 ms 12156 KB Output is correct
35 Correct 13 ms 12152 KB Output is correct
36 Correct 12 ms 12152 KB Output is correct
37 Correct 15 ms 12152 KB Output is correct
38 Runtime error 337 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
39 Runtime error 352 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
40 Runtime error 342 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
41 Runtime error 335 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
42 Correct 12 ms 12152 KB Output is correct
43 Correct 13 ms 12024 KB Output is correct
44 Correct 12 ms 12028 KB Output is correct
45 Correct 13 ms 12152 KB Output is correct
46 Runtime error 348 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
47 Runtime error 348 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
48 Runtime error 342 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
49 Runtime error 342 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
50 Correct 12 ms 12024 KB Output is correct
51 Correct 12 ms 12024 KB Output is correct
52 Correct 13 ms 12024 KB Output is correct
53 Correct 12 ms 12024 KB Output is correct
54 Runtime error 359 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)