oj.uz

Submission #1036107

# Submission time Handle Problem Language Result Execution time Memory
1036107 2024-07-27T03:38:23 Z HNa_seawjing Robot (JOI21_ho_t4) C++14
100 / 100
 305 ms 122432 KB 
//**********************
//
//**********************
#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
#define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
#define FORD(i, b, a) for (int i = (b), _a = (a); i >= _a; i--)
#define add(a,b) a=(a+b)%MOD
#define BIT(mask,i) ((mask >> i) & 1ll )
#define OFF(mask,i) (mask & (~(1ll << i))) 
#define ON(mask,i) (mask | (1ll << i))
#define endl '\n'
#define DAO(mask,i) (mask ^ (1ll << i))    
#define add(a,b) a=(a+b)%MOD
#define m_p make_pair
#define m_t make_tuple
#define built(mask) __builtin_popcountll(mask)
#define all(x) x.begin(),x.end()
#define XD cout << '\n'
#define ii pair <int,int> 
#define iii pair<int,pair<int, int> >
#define TASK "robot1"
using namespace std;
const long long oo = 1e18;
const int N = 6e5+5;
const int MOD = 1e9+7;
vector< ii > a[N];
map<int , int> mp[N];
vector< iii> g[N];
int dist[N];
int sum[N];
bool vis[N];
void dij(int x)
{
	FOR(i,1,N) dist[i] = oo; 
	priority_queue< pair < int,int > , vector < pair < int ,int > > , greater < pair < int , int > > > q;
	dist[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] || dist[y] < W + w)
				continue;
			dist[y] = W + w;
			q.push({W + w, y});
		}
	}
}
signed main()
{
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
//	freopen(TASK".inp","r",stdin);
	//freopen(TASK".out","w",stdout);
	int n,m,x,y,c,p;
	cin >> n >> m;
	FOR(i,1,m)
	{
		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;
	FOR(i,1,n)
	{
		sort(g[i].begin(), g[i].end());
		for (auto x : g[i])
			sum[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, sum[x.fi] - x.se.se));
			a[x.se.fi].push_back(m_p(cur, 0));
		}
		for (auto x : g[i])
		{
			sum[x.fi] = 0;
			vis[x.fi] = 0;
		}
	}
	dij(1);
	if (dist[n] == oo)
		cout << "-1";
	else
		cout << dist[n];
	return 0;
}

Compilation message

Main.cpp: In function 'void dij(long long int)':
Main.cpp:37:21: warning: iteration 600004 invokes undefined behavior [-Waggressive-loop-optimizations]
   37 |  FOR(i,1,N) dist[i] = oo;
      |             ~~~~~~~~^~~~
Main.cpp:8:52: note: within this loop
    8 | #define FOR(i, a, b) for (int i = (a), _b = (b); i <= _b; i++)
      |                                                    ^
Main.cpp:37:2: note: in expansion of macro 'FOR'
   37 |  FOR(i,1,N) dist[i] = oo;
      |  ^~~

Subtask #1
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 61528 KB Output is correct
2 Correct 23 ms 61532 KB Output is correct
3 Correct 31 ms 61520 KB Output is correct
4 Correct 26 ms 61532 KB Output is correct
5 Correct 25 ms 61520 KB Output is correct
6 Correct 25 ms 61532 KB Output is correct
7 Correct 25 ms 61524 KB Output is correct
8 Correct 25 ms 61532 KB Output is correct
9 Correct 27 ms 62044 KB Output is correct
10 Correct 26 ms 62044 KB Output is correct
11 Correct 31 ms 62036 KB Output is correct
12 Correct 31 ms 62044 KB Output is correct
13 Correct 27 ms 62044 KB Output is correct
14 Correct 26 ms 62044 KB Output is correct
15 Correct 29 ms 62032 KB Output is correct
16 Correct 27 ms 62056 KB Output is correct
17 Correct 27 ms 61744 KB Output is correct
18 Correct 26 ms 61532 KB Output is correct
19 Correct 26 ms 62044 KB Output is correct
20 Correct 26 ms 61788 KB Output is correct

Subtask #2
24.0 / 24.0

# Verdict Execution time Memory Grader output
1 Correct 121 ms 83404 KB Output is correct
2 Correct 65 ms 71408 KB Output is correct
3 Correct 136 ms 95264 KB Output is correct
4 Correct 84 ms 75368 KB Output is correct
5 Correct 305 ms 122432 KB Output is correct
6 Correct 278 ms 117808 KB Output is correct
7 Correct 209 ms 111104 KB Output is correct
8 Correct 275 ms 112260 KB Output is correct
9 Correct 265 ms 111956 KB Output is correct
10 Correct 169 ms 94408 KB Output is correct
11 Correct 118 ms 86352 KB Output is correct

Subtask #3
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 61528 KB Output is correct
2 Correct 23 ms 61532 KB Output is correct
3 Correct 31 ms 61520 KB Output is correct
4 Correct 26 ms 61532 KB Output is correct
5 Correct 25 ms 61520 KB Output is correct
6 Correct 25 ms 61532 KB Output is correct
7 Correct 25 ms 61524 KB Output is correct
8 Correct 25 ms 61532 KB Output is correct
9 Correct 27 ms 62044 KB Output is correct
10 Correct 26 ms 62044 KB Output is correct
11 Correct 31 ms 62036 KB Output is correct
12 Correct 31 ms 62044 KB Output is correct
13 Correct 27 ms 62044 KB Output is correct
14 Correct 26 ms 62044 KB Output is correct
15 Correct 29 ms 62032 KB Output is correct
16 Correct 27 ms 62056 KB Output is correct
17 Correct 27 ms 61744 KB Output is correct
18 Correct 26 ms 61532 KB Output is correct
19 Correct 26 ms 62044 KB Output is correct
20 Correct 26 ms 61788 KB Output is correct
21 Correct 121 ms 83404 KB Output is correct
22 Correct 65 ms 71408 KB Output is correct
23 Correct 136 ms 95264 KB Output is correct
24 Correct 84 ms 75368 KB Output is correct
25 Correct 305 ms 122432 KB Output is correct
26 Correct 278 ms 117808 KB Output is correct
27 Correct 209 ms 111104 KB Output is correct
28 Correct 275 ms 112260 KB Output is correct
29 Correct 265 ms 111956 KB Output is correct
30 Correct 169 ms 94408 KB Output is correct
31 Correct 118 ms 86352 KB Output is correct
32 Correct 99 ms 94940 KB Output is correct
33 Correct 114 ms 90912 KB Output is correct
34 Correct 194 ms 99524 KB Output is correct
35 Correct 150 ms 91844 KB Output is correct
36 Correct 193 ms 97196 KB Output is correct
37 Correct 247 ms 107932 KB Output is correct
38 Correct 208 ms 113304 KB Output is correct
39 Correct 130 ms 107720 KB Output is correct
40 Correct 250 ms 113412 KB Output is correct
41 Correct 268 ms 113492 KB Output is correct
42 Correct 262 ms 108488 KB Output is correct
43 Correct 105 ms 86740 KB Output is correct
44 Correct 169 ms 111804 KB Output is correct
45 Correct 212 ms 100948 KB Output is correct
46 Correct 184 ms 97104 KB Output is correct
47 Correct 224 ms 101916 KB Output is correct
48 Correct 292 ms 120904 KB Output is correct