oj.uz

Submission #1036118

# Submission time Handle Problem Language Result Execution time Memory
1036118 2024-07-27T03:43:03 Z HNa_seawjing Robot (JOI21_ho_t4) C++14
24 / 100
 351 ms 93360 KB 
#include <bits/stdc++.h>
//code
#define fl(i,x,y,z) for(int i=x;i<=y;i=i+z)
#define fn(i,x,y,z) for(int i=x;i>=y;i=i-z)
#define rep(i,x,y) for(int i=x;i<y;i=i+1)
#define all(v) v.begin(),v.end()
#define pb push_back
#define tle cout<<"tle"<<endl
#define edl cout<<"\n"
#define el "\n"
#define getbit(x,i) ((x>>i)&1)
#define bitcnt __builtin_popcount
//ham
#define pii pair<int,int>
#define fi first
#define se second
#define ll long long
#define ld long double
#define inf 0x3f3f3f3f
#define m_p make_pair
#define int long long
using namespace std;
const ll mod=1e9+7;
vector< pii > a[600005];
vector<pair<int,pii>> g[600005];
int d[600005];
int t[600005];
bool vis[600005];
void dij(int x)
{
	fl(i,1,600005,1) d[i] = 1e9;
	priority_queue< pii , vector < pii > , greater < pii > > q;
	d[x] = 0;
	q.push(m_p(0, x));
	while (!q.empty())
	{
		auto p1 = q.top();
		int W = p1.fi;
		int x = p1.se;
		q.pop();
		if (vis[x])
			continue;
		vis[x] = 1;
		for (auto p2 : a[x])
		{
			int y = p2.fi;
			int w = p2.se;
			if (vis[y] || d[y] < W + w)
				continue;
			d[y] = W + w;
			q.push({W + w, y});
		}
	}
}
void sol()
{
	int n,m,x,y,c,p;
	cin >> n >> m;
	fl(i,1,m,1)
	{
		cin >> x >> y >> c >> p;
		g[x].push_back({c, {y, p}});
		g[y].push_back({c, {x, p}});
		a[x].push_back({y, p});
		a[y].push_back({x, p});
	}
	int cur = n;
	fl(i,1,n,1)
	{
		sort(g[i].begin(), g[i].end());
		for (auto x : g[i])
			t[x.fi] += x.se.se;
		for (auto x : g[i])
		{
			if (!vis[x.fi])
			{
				++cur;
				a[i].push_back(m_p(cur,0));
			}
			vis[x.fi] = 1;
			a[cur].push_back(m_p(x.se.fi, t[x.fi] - x.se.se));
			a[x.se.fi].push_back(m_p(cur, 0));
		}
		for (auto x : g[i])
		{
			t[x.fi] = 0;
			vis[x.fi] = 0;
		}
	}
	dij(1);
	if (d[n] == 1e9) cout << "-1";
	else cout << d[n];
}
signed main()
{
//    freopen("task.inp","r",stdin);
//    freopen("task.out","w",stdout);
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    sol();
    return 0;
}
/*   /\_/\
    ( ._. )
    / >V< \
*/

Compilation message

Main.cpp: In function 'void dij(long long int)':
Main.cpp:31:24: warning: iteration 600004 invokes undefined behavior [-Waggressive-loop-optimizations]
   31 |  fl(i,1,600005,1) d[i] = 1e9;
      |                   ~~~~~^~~~~
Main.cpp:3:34: note: within this loop
    3 | #define fl(i,x,y,z) for(int i=x;i<=y;i=i+z)
......
   31 |  fl(i,1,600005,1) d[i] = 1e9;
      |     ~~~~~~~~~~                    
Main.cpp:31:2: note: in expansion of macro 'fl'
   31 |  fl(i,1,600005,1) d[i] = 1e9;
      |  ^~

Subtask #1
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 33116 KB Output is correct
2 Correct 14 ms 33116 KB Output is correct
3 Correct 16 ms 33124 KB Output is correct
4 Correct 14 ms 33116 KB Output is correct
5 Correct 14 ms 33372 KB Output is correct
6 Correct 14 ms 33372 KB Output is correct
7 Correct 14 ms 33372 KB Output is correct
8 Correct 16 ms 33368 KB Output is correct
9 Correct 15 ms 33884 KB Output is correct
10 Correct 18 ms 33884 KB Output is correct
11 Correct 15 ms 33888 KB Output is correct
12 Correct 15 ms 33628 KB Output is correct
13 Correct 16 ms 33672 KB Output is correct
14 Correct 16 ms 33880 KB Output is correct
15 Incorrect 21 ms 33624 KB Output isn't correct
16 Halted 0 ms 0 KB -

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 103 ms 55240 KB Output is correct
2 Correct 51 ms 43284 KB Output is correct
3 Correct 122 ms 67012 KB Output is correct
4 Correct 73 ms 47056 KB Output is correct
5 Correct 337 ms 93360 KB Output is correct
6 Correct 300 ms 88964 KB Output is correct
7 Correct 244 ms 82268 KB Output is correct
8 Correct 282 ms 83248 KB Output is correct
9 Correct 351 ms 83280 KB Output is correct
10 Correct 167 ms 65992 KB Output is correct
11 Correct 113 ms 58196 KB Output is correct

Subtask #3
0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 33116 KB Output is correct
2 Correct 14 ms 33116 KB Output is correct
3 Correct 16 ms 33124 KB Output is correct
4 Correct 14 ms 33116 KB Output is correct
5 Correct 14 ms 33372 KB Output is correct
6 Correct 14 ms 33372 KB Output is correct
7 Correct 14 ms 33372 KB Output is correct
8 Correct 16 ms 33368 KB Output is correct
9 Correct 15 ms 33884 KB Output is correct
10 Correct 18 ms 33884 KB Output is correct
11 Correct 15 ms 33888 KB Output is correct
12 Correct 15 ms 33628 KB Output is correct
13 Correct 16 ms 33672 KB Output is correct
14 Correct 16 ms 33880 KB Output is correct
15 Incorrect 21 ms 33624 KB Output isn't correct
16 Halted 0 ms 0 KB -