oj.uz

Submission #1039473

# Submission time Handle Problem Language Result Execution time Memory
1039473 2024-07-30T23:46:05 Z Trent Spy 3 (JOI24_spy3) C++17
92 / 100
 276 ms 8260 KB 
#include "Aoi.h"
#include "bits/stdc++.h"
 
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
 
namespace {
	typedef long long ll;
	struct pii{int a, b;};
	bool operator <(pii a, pii b) {return a.a < b.a || a.a == b.a && a.b < b.b;}
	struct edge{int t; ll len;};
	struct node{int i; ll to;};
	bool operator <(node a, node b){
		return a.to > b.to;
	}
	const ll INF = 1e17;
	string toBinNumber(int x, int bits) {
		string ret;
		forR(i, bits) {
			ret.push_back(x % 2 == 0 ? '0' : '1');
			x /= 2;
		}
		reverse(all(ret));
		assert(x == 0);
		return ret;
	}
}
 
std::string aoi(int N, int M, int Q, int K, std::vector<int> A,
                std::vector<int> B, std::vector<long long> C,
                std::vector<int> T, std::vector<int> X) {
	vector<vector<edge>> adj(N);
	map<pii, int> xi;
	forR(i, M){
		adj[A[i]].push_back({B[i], C[i]});
		adj[B[i]].push_back({A[i], C[i]});
	}
	forR(i, K){
		xi.insert({{A[X[i]], B[X[i]]}, i});
		xi.insert({{B[X[i]], A[X[i]]}, i});
	}
 
	vector<int> indIn(K, Q);
	vector<int> lOld(Q);
	// dijkstra
	forR(i, Q){
		vector<ll> dis(N, INF);
		vector<bool> vis(N);
		vector<int> pre(N);
		priority_queue<node> dij;
		dij.push({0, 0});
		dis[0] = 0;
		while(!dij.empty()){
			auto [cur, len] = dij.top();
			dij.pop();
			if(!vis[cur]){
				vis[cur] = true;
				for(auto [to, el] : adj[cur]){
					if(len + el < dis[to]){
						dis[to] = len + el;
						pre[to] = cur;
						dij.push({to, dis[to]});
					}
				}
			}
		}
 
		vector<int> pth;
		for(int j = T[i]; j != 0; j = pre[j]) pth.push_back(j);
		pth.push_back(0);
		reverse(all(pth));
		int lasUsed = -1;
		forR(j, (int) pth.size() - 1) {
			if(xi.count({pth[j], pth[j+1]})) {
				int eInd = xi[{pth[j], pth[j+1]}];
				if(indIn[eInd] == Q) {
					indIn[eInd] = i;
				} else {
					lasUsed = eInd;
				}
			}
		}
		lOld[i] = lasUsed == -1 ? -1 : lasUsed;
	}
    set<int> sUsedX;
    for(int i : lOld) if(i != -1) sUsedX.insert(i);
    vector<int> usedX;
    for(int i : sUsedX) usedX.push_back(i);
 
	for(int i : indIn) cerr << i << ' ';
	cerr << '\n';
	for(int i : lOld) cerr << i << ' ';
	cerr << '\n';

	string ret;
	for(int i : indIn) {
		ret += toBinNumber(i, 5);
	}
	for(int i : lOld) {
		ret += toBinNumber(i + 1, 9);
	}
	cerr << ret << '\n';
	return ret;
}
#include "Bitaro.h"
#include "bits/stdc++.h"
 
using namespace std;
#define forR(i, x) for(int i = 0; i < (x); ++i)
#define REP(i, a, b) for(int i = (a); i < (b); ++i)
#define all(x) x.begin(), x.end()
 
namespace {
	typedef long long ll;
	struct pii{int a, b;};
	bool operator <(pii a, pii b) {return a.a < b.a || a.a == b.a && a.b < b.b;}
	struct edge{int t, ind; ll len;};
	struct node{int i; ll to;};
	bool operator <(node a, node b){
		return a.to > b.to;
	}
	const ll INF = 1e17;
	int fromBinNumber(string s) {
		int ret = 0;
		for(char i : s) ret = ret * 2 + (i == '0' ? 0 : 1);
		return ret;
	}
}
 
void bitaro(int N, int M, int Q, int K, std::vector<int> A, std::vector<int> B,
            std::vector<long long> C, std::vector<int> T, std::vector<int> X,
            std::string s) {
	map<pii, int> xi;
	forR(i, K){
		xi.insert({{A[X[i]], B[X[i]]}, i});
		xi.insert({{B[X[i]], A[X[i]]}, i});
	}
 
	vector<vector<edge>> adj(N);
	map<pii, int> ei;
	forR(i, M){
		int cxi = -1;
		if(xi.count({A[i], B[i]})){
			cxi = xi[{A[i], B[i]}];
		}
		adj[A[i]].push_back({B[i], cxi, C[i]});
		adj[B[i]].push_back({A[i], cxi, C[i]});
		ei[{A[i], B[i]}] = i;
		ei[{B[i], A[i]}] = i;
	}
 
	vector<int> indIn;
	vector<int> lOld;
	int ci=0;
	forR(i, K) {
		indIn.push_back(fromBinNumber(s.substr(ci, 5)));
		ci += 5;
	}
	forR(i, Q) {
		lOld.push_back(fromBinNumber(s.substr(ci, 9)) - 1);
		ci += 9;
	}
	for(int i : indIn) cerr << i << ' ';
	cerr << '\n';
	for(int i : lOld) cerr << i << ' ';
	cerr << '\n';
 
	vector<bool> solid(N, false);
	vector<int> sPre(N);
	forR(i, Q){
		vector<ll> dis(N, INF);
		vector<bool> vis(N);
		vector<int> pre(N);
		int stNode;
		if(lOld[i] == -1) stNode = 0;
		else {
			int eInd = X[lOld[i]];
			stNode = sPre[A[eInd]] == B[eInd] ? A[eInd] : B[eInd];
			assert(solid[stNode]);
		}
 
		priority_queue<node> dij;
		dij.push({stNode, 0});
		dis[stNode] = 0;
		while(!dij.empty()){
			auto [cur, len] = dij.top();
			dij.pop();
			if(!vis[cur]){
				vis[cur] = true;
				for(auto [to, ind, el] : adj[cur]){
					if(ind == -1 || indIn[ind] == i){
						el = ind == -1 ? el : 0;
						if(len + el < dis[to]){
							dis[to] = len + el;
							pre[to] = cur;
							dij.push({to, dis[to]});
						}
					}
				}	
			}
		}
		vector<int> pth;
		for(int j = T[i]; j != stNode; j = pre[j]) pth.push_back(j);
		for(int j = stNode; j != 0; j = sPre[j]) pth.push_back(j);
		pth.push_back(0);
		reverse(all(pth));
		for(int j : pth) cerr << j << ' ';
		cerr << '\n';
		REP(j, 1, pth.size()) {
			solid[pth[j]] = true;
			sPre[pth[j]] = pth[j-1];
		}
		vector<int> ret;
		forR(j, (int) pth.size() - 1) ret.push_back(ei[{pth[j], pth[j+1]}]);
		answer(ret);
	}
}

Compilation message

Aoi.cpp: In function 'bool {anonymous}::operator<({anonymous}::pii, {anonymous}::pii)':
Aoi.cpp:12:64: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   12 |  bool operator <(pii a, pii b) {return a.a < b.a || a.a == b.a && a.b < b.b;}
      |                                                     ~~~~~~~~~~~^~~~~~~~~~~~

Bitaro.cpp: In function 'bool {anonymous}::operator<({anonymous}::pii, {anonymous}::pii)':
Bitaro.cpp:12:64: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   12 |  bool operator <(pii a, pii b) {return a.a < b.a || a.a == b.a && a.b < b.b;}
      |                                                     ~~~~~~~~~~~^~~~~~~~~~~~
Bitaro.cpp: In function 'void bitaro(int, int, int, int, std::vector<int>, std::vector<int>, std::vector<long long int>, std::vector<int>, std::vector<int>, std::string)':
Bitaro.cpp:6:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    6 | #define REP(i, a, b) for(int i = (a); i < (b); ++i)
      |                                         ^
Bitaro.cpp:105:3: note: in expansion of macro 'REP'
  105 |   REP(j, 1, pth.size()) {
      |   ^~~

Subtask #1
92.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 26 ms 6324 KB Output is correct
2 Correct 1 ms 768 KB Output is correct
3 Partially correct 56 ms 7068 KB Partially correct
4 Partially correct 170 ms 6768 KB Partially correct
5 Partially correct 57 ms 6988 KB Partially correct
6 Partially correct 81 ms 7084 KB Partially correct
7 Partially correct 50 ms 6972 KB Partially correct
8 Partially correct 70 ms 6916 KB Partially correct
9 Partially correct 144 ms 6832 KB Partially correct
10 Correct 37 ms 6728 KB Output is correct
11 Partially correct 49 ms 6856 KB Partially correct
12 Correct 87 ms 7084 KB Output is correct
13 Correct 62 ms 7040 KB Output is correct
14 Correct 50 ms 6836 KB Output is correct
15 Correct 129 ms 6928 KB Output is correct
16 Correct 34 ms 6416 KB Output is correct
17 Partially correct 276 ms 7128 KB Partially correct
18 Partially correct 265 ms 7112 KB Partially correct
19 Partially correct 70 ms 8068 KB Partially correct
20 Partially correct 50 ms 8120 KB Partially correct
21 Partially correct 62 ms 8120 KB Partially correct
22 Partially correct 80 ms 8152 KB Partially correct
23 Partially correct 62 ms 8064 KB Partially correct
24 Partially correct 80 ms 8060 KB Partially correct
25 Partially correct 206 ms 7064 KB Partially correct
26 Partially correct 211 ms 7068 KB Partially correct
27 Correct 2 ms 776 KB Output is correct
28 Correct 65 ms 7420 KB Output is correct
29 Partially correct 83 ms 5112 KB Partially correct
30 Correct 86 ms 7444 KB Output is correct
31 Correct 41 ms 7348 KB Output is correct
32 Correct 62 ms 7516 KB Output is correct
33 Correct 57 ms 7024 KB Output is correct
34 Correct 106 ms 7624 KB Output is correct
35 Correct 90 ms 7628 KB Output is correct
36 Correct 78 ms 7596 KB Output is correct
37 Partially correct 78 ms 4112 KB Partially correct
38 Partially correct 199 ms 5332 KB Partially correct
39 Correct 192 ms 5336 KB Output is correct
40 Correct 25 ms 4628 KB Output is correct
41 Partially correct 75 ms 7844 KB Partially correct
42 Partially correct 53 ms 8048 KB Partially correct
43 Correct 109 ms 8144 KB Output is correct
44 Correct 31 ms 7880 KB Output is correct
45 Partially correct 75 ms 4100 KB Partially correct
46 Partially correct 93 ms 4856 KB Partially correct
47 Correct 109 ms 4844 KB Output is correct
48 Correct 0 ms 776 KB Output is correct
49 Correct 1 ms 776 KB Output is correct
50 Partially correct 24 ms 6412 KB Partially correct
51 Partially correct 4 ms 1044 KB Partially correct
52 Correct 2 ms 772 KB Output is correct
53 Correct 29 ms 6476 KB Output is correct
54 Partially correct 18 ms 4328 KB Partially correct
55 Correct 41 ms 5124 KB Output is correct
56 Partially correct 39 ms 7444 KB Partially correct
57 Partially correct 54 ms 7724 KB Partially correct
58 Partially correct 45 ms 6144 KB Partially correct
59 Correct 62 ms 7924 KB Output is correct
60 Partially correct 54 ms 7628 KB Partially correct
61 Correct 72 ms 7852 KB Output is correct
62 Correct 66 ms 7392 KB Output is correct
63 Correct 72 ms 7928 KB Output is correct
64 Correct 24 ms 6924 KB Output is correct
65 Correct 39 ms 5452 KB Output is correct
66 Correct 37 ms 8184 KB Output is correct
67 Correct 40 ms 5368 KB Output is correct
68 Correct 40 ms 8260 KB Output is correct
69 Correct 0 ms 1028 KB Output is correct
70 Correct 0 ms 776 KB Output is correct
71 Correct 2 ms 776 KB Output is correct
72 Partially correct 18 ms 3836 KB Partially correct
73 Partially correct 33 ms 4624 KB Partially correct
74 Partially correct 32 ms 4668 KB Partially correct
75 Correct 16 ms 4596 KB Output is correct
76 Correct 0 ms 776 KB Output is correct
77 Correct 48 ms 7196 KB Output is correct
78 Partially correct 41 ms 7136 KB Partially correct
79 Correct 54 ms 7096 KB Output is correct
80 Correct 0 ms 784 KB Output is correct
81 Correct 53 ms 6968 KB Output is correct
82 Partially correct 48 ms 6928 KB Partially correct
83 Correct 60 ms 6980 KB Output is correct