답안 #207259

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
207259 2020-03-06T20:47:07 Z MvC Pipes (BOI13_pipes) C++11
65 / 100
348 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(!viz[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(viz[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 12 ms 12152 KB Output is correct
2 Correct 12 ms 12152 KB Output is correct
3 Correct 12 ms 12152 KB Output is correct
4 Correct 84 ms 18652 KB Output is correct
5 Correct 13 ms 12152 KB Output is correct
6 Correct 12 ms 12152 KB Output is correct
7 Correct 12 ms 12152 KB Output is correct
8 Correct 12 ms 12152 KB Output is correct
9 Correct 12 ms 12152 KB Output is correct
10 Correct 13 ms 12152 KB Output is correct
11 Correct 13 ms 12156 KB Output is correct
12 Correct 13 ms 12152 KB Output is correct
13 Correct 68 ms 17340 KB Output is correct
14 Correct 87 ms 18424 KB Output is correct
15 Correct 89 ms 18776 KB Output is correct
16 Correct 75 ms 17824 KB Output is correct
17 Correct 86 ms 18736 KB Output is correct
18 Correct 92 ms 18780 KB Output is correct
19 Correct 88 ms 18552 KB Output is correct
20 Correct 12 ms 12152 KB Output is correct
21 Correct 13 ms 12152 KB Output is correct
22 Correct 91 ms 18732 KB Output is correct
23 Correct 67 ms 17400 KB Output is correct
24 Correct 93 ms 18776 KB Output is correct
25 Correct 76 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 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
3 Runtime error 335 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
4 Correct 12 ms 12024 KB Output is correct
5 Correct 12 ms 12152 KB Output is correct
6 Correct 12 ms 12024 KB Output is correct
7 Runtime error 288 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 289 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 12152 KB Output is correct
12 Correct 12 ms 12152 KB Output is correct
13 Correct 12 ms 12028 KB Output is correct
14 Runtime error 307 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
15 Runtime error 287 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
16 Runtime error 287 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
17 Runtime error 293 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
18 Correct 13 ms 12024 KB Output is correct
19 Correct 13 ms 12152 KB Output is correct
20 Correct 12 ms 12024 KB Output is correct
21 Correct 12 ms 12024 KB Output is correct
22 Runtime error 284 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
23 Runtime error 327 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
24 Runtime error 337 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
25 Runtime error 341 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
26 Correct 12 ms 12072 KB Output is correct
27 Correct 14 ms 12024 KB Output is correct
28 Correct 13 ms 12024 KB Output is correct
29 Correct 13 ms 12024 KB Output is correct
30 Runtime error 338 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
31 Runtime error 342 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
32 Runtime error 338 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
33 Runtime error 346 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
34 Correct 12 ms 12024 KB Output is correct
35 Correct 12 ms 12024 KB Output is correct
36 Correct 12 ms 12024 KB Output is correct
37 Correct 12 ms 12024 KB Output is correct
38 Runtime error 348 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
39 Runtime error 340 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
40 Runtime error 334 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)
41 Runtime error 338 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
42 Correct 12 ms 12024 KB Output is correct
43 Correct 12 ms 12024 KB Output is correct
44 Correct 12 ms 12024 KB Output is correct
45 Correct 13 ms 12024 KB Output is correct
46 Runtime error 343 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
47 Runtime error 335 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 337 ms 131076 KB Execution killed with signal 9 (could be triggered by violating memory limits)
50 Correct 12 ms 12028 KB Output is correct
51 Correct 12 ms 12028 KB Output is correct
52 Correct 16 ms 12024 KB Output is correct
53 Correct 12 ms 12024 KB Output is correct
54 Runtime error 339 ms 131072 KB Execution killed with signal 9 (could be triggered by violating memory limits)