oj.uz

답안 #643243

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
643243 2022-09-21T14:58:57 Z Vladth11 The Potion of Great Power (CEOI20_potion) C++14
17 / 100
 3000 ms 32124 KB 
#include <iostream>
#include <vector>
#include <set>
#include <unordered_set>
#include <algorithm>

//#define debug(x) cerr << #x << " " << x << "\n"

#pragma GCC optimize("Ofast")

using namespace std;
typedef long long ll;
typedef pair <int, int> pii;

const int bSize = 100;
const int bits = 17;
const int NMAX = 100000;
const int VMAX = NMAX * 89;

int a[NMAX], n;
int u;
int par[NMAX];

struct BLOCK {
    int time;
    vector <int> v;
};

class DS {
public:
    vector <BLOCK> blocks;
    vector <pii> changes;
    vector <int> vecini;
    void baga(int x, int cand) {
        vecini.push_back(x);
        changes.push_back({x, cand});
        if(changes.size() % bSize == 0) {
            BLOCK nou;
            nou.v.clear();
            nou.time = cand;
            for(auto x : vecini){
                par[x] = 0;
            }
            for(auto x : vecini){
                par[x]++;
            }
            for(auto x : vecini){
                if(par[x] % 2 == 1) nou.v.push_back(x);
            }
            blocks.push_back(nou);
        }
    }

} ds[NMAX];

void init(int N, int D, int H[]) {
    n = N;
    for(int i = 0; i < N; i++) {
        a[i] = H[i];
    }
}

void curseChanges(int U, int A[], int B[]) {
    u = U;
    for(int i = 0; i < U; i++) {
        int timp = i + 1;
        ds[A[i]].baga(B[i], timp);
        ds[B[i]].baga(A[i], timp);
    }
}

bool cmp(int A, int B) {
    if(a[A] != a[B])
        return a[A] < a[B];
    return A < B;
}

int impX[NMAX];
int impY[NMAX];
int intrebare;

int question(int x, int y, int v) {
    int r = -1;
    intrebare++;
    int timpX = 0, timpY = 0;
    int pas = (1 << bits);
    while(pas) {
        if(r + pas < ds[x].blocks.size() && ds[x].blocks[r + pas].time <= v)
            r += pas;
        pas /= 2;
    }
    vector <int> parcurgere[2];
    unordered_set <int> stX;
    if(r != -1) {
        timpX = ds[x].blocks[r].time + 1;
        parcurgere[0] = ds[x].blocks[r].v;
    }
    r = -1;
    pas = (1 << bits);
    while(pas) {
        if(r + pas < ds[y].blocks.size() && ds[y].blocks[r + pas].time <= v)
            r += pas;
        pas /= 2;
    }
    if(r != -1) {
        timpY = ds[y].blocks[r].time + 1;
        parcurgere[1] = ds[y].blocks[r].v;
    }
    r = -1, pas = (1 << bits);
    while(pas) {
        if(r + pas < ds[x].changes.size() && ds[x].changes[r + pas].second < timpX)
            r += pas;
        pas /= 2;
    }
    r++;
    for(; r < ds[x].changes.size() && ds[x].changes[r].second <= v; r++) {
        pii change = ds[x].changes[r];
        parcurgere[0].push_back(change.first);
    }
    r = -1, pas = (1 << bits);
    while(pas) {
        if(r + pas < ds[y].changes.size() && ds[y].changes[r + pas].second < timpY)
            r += pas;
        pas /= 2;
    }
    r++;
    for(; r < ds[y].changes.size() && ds[y].changes[r].second <= v; r++) {
        pii change = ds[y].changes[r];
        parcurgere[1].push_back(change.first);
    }
    if(!parcurgere[0].size() || !parcurgere[1].size()) return 1e9;
    sort(parcurgere[0].begin(), parcurgere[0].end(), cmp);
    sort(parcurgere[1].begin(), parcurgere[1].end(), cmp);
    int cnt = 0, i;
    for(i = 0; i < parcurgere[0].size(); i++) {
        if(i != 0 && parcurgere[0][i - 1] != parcurgere[0][i]) {
            if(cnt % 2 == 0) {
                impX[parcurgere[0][i - 1]] = intrebare;
            }
            cnt = 0;
        }
        cnt++;
    }
    if(cnt % 2 == 0) {
        impX[parcurgere[0][i - 1]] = intrebare;
    }
    cnt = 0;
    for(i = 0; i < parcurgere[1].size(); i++) {
        if(i != 0 && parcurgere[1][i - 1] != parcurgere[1][i]) {
            if(cnt % 2 == 0) {
                impY[parcurgere[1][i - 1]] = intrebare;
            }
            cnt = 0;
        }
        cnt++;
    }
    if(cnt % 2 == 0) {
        impY[parcurgere[1][i - 1]] = intrebare;
    }
    cnt = 0;
    int minim = 1e9;
    i = 0;
    int j = 0;
    while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
        if(impX[parcurgere[0][i]] == intrebare) {
            i++;
            continue;
        }
        if(impY[parcurgere[1][j]] == intrebare) {
            j++;
            continue;
        }
        minim = min(minim, abs(a[parcurgere[0][i]] - a[parcurgere[1][j]]));
        if(a[parcurgere[0][i]] < a[parcurgere[1][j]])
            i++;
        else
            j++;
    }
    return minim;
}

Compilation message

potion.cpp: In function 'int question(int, int, int)':
potion.cpp:88:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BLOCK>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |         if(r + pas < ds[x].blocks.size() && ds[x].blocks[r + pas].time <= v)
      |            ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
potion.cpp:101:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<BLOCK>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |         if(r + pas < ds[y].blocks.size() && ds[y].blocks[r + pas].time <= v)
      |            ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~
potion.cpp:111:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  111 |         if(r + pas < ds[x].changes.size() && ds[x].changes[r + pas].second < timpX)
      |            ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:116:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  116 |     for(; r < ds[x].changes.size() && ds[x].changes[r].second <= v; r++) {
      |           ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:122:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  122 |         if(r + pas < ds[y].changes.size() && ds[y].changes[r + pas].second < timpY)
      |            ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:127:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  127 |     for(; r < ds[y].changes.size() && ds[y].changes[r].second <= v; r++) {
      |           ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:135:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  135 |     for(i = 0; i < parcurgere[0].size(); i++) {
      |                ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:148:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  148 |     for(i = 0; i < parcurgere[1].size(); i++) {
      |                ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:164:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  164 |     while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
      |           ~~^~~~~~~~~~~~~~~~~~~~~~
potion.cpp:164:41: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  164 |     while(i < parcurgere[0].size() && j < parcurgere[1].size()) {
      |                                       ~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7376 KB Output is correct

Subtask #2
17.0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Correct 6 ms 7396 KB Output is correct
2 Correct 5 ms 7376 KB Output is correct
3 Correct 5 ms 7376 KB Output is correct
4 Correct 23 ms 8268 KB Output is correct

Subtask #3
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 254 ms 20056 KB Output is correct
2 Correct 221 ms 20028 KB Output is correct
3 Execution timed out 3078 ms 32124 KB Time limit exceeded
4 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 221 ms 20016 KB Output is correct
2 Execution timed out 3035 ms 25684 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 52 ms 8144 KB Output is correct
2 Correct 178 ms 8016 KB Output is correct
3 Correct 1067 ms 8100 KB Output is correct
4 Correct 1117 ms 8308 KB Output is correct
5 Correct 932 ms 8336 KB Output is correct
6 Correct 100 ms 7908 KB Output is correct
7 Execution timed out 3005 ms 8272 KB Time limit exceeded
8 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 7376 KB Output is correct
2 Correct 6 ms 7396 KB Output is correct
3 Correct 5 ms 7376 KB Output is correct
4 Correct 5 ms 7376 KB Output is correct
5 Correct 23 ms 8268 KB Output is correct
6 Correct 254 ms 20056 KB Output is correct
7 Correct 221 ms 20028 KB Output is correct
8 Execution timed out 3078 ms 32124 KB Time limit exceeded
9 Halted 0 ms 0 KB -