oj.uz

Submission #275823

# Submission time Handle Problem Language Result Execution time Memory
275823 2020-08-20T07:54:27 Z 임성재(#5103) Circus (Balkan15_CIRCUS) C++17
17 / 100
 59 ms 11508 KB 
#include "circus.h"
#include<bits/stdc++.h>
using namespace std;

#define fast ios::sync_with_stdio(false); cin.tie(0);
#define fi first
#define se second
#define em emplace
#define eb emplace_back
#define all(v) (v).begin(), (v).end()
#define mp make_pair

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef pair<int,pii> piii;
const int inf = 1e9;
const ll INF = 1e18;

int n, m;
int dp[100010];
bool chk[100010];
set<int> s;
vector<int> p;
priority_queue<piii, vector<piii>, greater<piii>> pQ;

int close(int x) {
    int md = dp[x];
    int ret = m+1, y = -1;
    
    auto it = s.lower_bound(x + md);
    if(it != s.end()) {
        if(*it - x < ret) {
            ret = *it - x;
            y = *it;
        }
    }
    
    it = s.upper_bound(x - md);
    if(it != s.begin()) {
        if(x - *prev(it) < ret) {
            ret = x - *prev(it);
            y = *prev(it);
        }
    }

    return y;
}

void init(int N, int M, int P[]){
    n = N;
    m = M;

    for(int i=0; i<n; i++) p.eb(P[i]);
    for(int i=0; i<p.size(); i++) s.insert(p[i]);

    pQ.em(0, mp(m, m));

    while(pQ.size()) {
        auto x = pQ.top();
        pQ.pop();

        //cout << x.fi << " " << x.se.fi << " " << x.se.se << endl;

        if(chk[x.se.fi]) continue;
        chk[x.se.fi] = true;
        dp[x.se.fi] = x.fi;
        s.erase(x.se.fi);

        /*int c = close(x.se.fi);

        if(c != -1)
            pQ.em(abs(c - x.se.fi), mp(c, x.se.fi));

        c = close(x.se.se);

        if(c != -1)
            pQ.em(abs(c - x.se.se), mp(c, x.se.se));*/

        int c1 = -1, c2 = -1;

        if(s.lower_bound(x.se.fi + dp[x.se.fi]) != s.end()) c2 = *s.lower_bound(x.se.fi + dp[x.se.fi]);
        if(s.upper_bound(x.se.fi - dp[x.se.fi]) != s.begin()) c1 = *prev(s.upper_bound(x.se.fi - dp[x.se.fi]));

        if(c1 != -1) pQ.em(x.se.fi - c1, mp(c1, x.se.fi));
        if(c2 != -1) pQ.em(c2 - x.se.fi, mp(c2, x.se.fi));

        c1 = -1, c2 = -1;

        if(s.lower_bound(x.se.se + dp[x.se.se]) != s.end()) c2 = *s.lower_bound(x.se.se + dp[x.se.se]);
        if(s.upper_bound(x.se.se - dp[x.se.se]) != s.begin()) c1 = *prev(s.upper_bound(x.se.se - dp[x.se.se]));

        if(c1 != -1) pQ.em(x.se.se - c1, mp(c1, x.se.se));
        if(c2 != -1) pQ.em(c2 - x.se.se, mp(c2, x.se.se));
    }
}

int minLength(int D) {
    int ret = m - D;
    for(int i=0; i<p.size(); i++) {
        if(abs(p[i] - D) < dp[p[i]]) continue;
        ret = min(ret, abs(p[i] - D));
    }

    return ret;
}

Compilation message

circus.cpp: In function 'void init(int, int, int*)':
circus.cpp:55:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   55 |     for(int i=0; i<p.size(); i++) s.insert(p[i]);
      |                  ~^~~~~~~~~
circus.cpp: In function 'int minLength(int)':
circus.cpp:100:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  100 |     for(int i=0; i<p.size(); i++) {
      |                  ~^~~~~~~~~
grader.cpp: In function 'int main()':
grader.cpp:14:12: warning: unused variable 'max_code' [-Wunused-variable]
   14 |  long long max_code;
      |            ^~~~~~~~
grader.cpp:16:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   16 |  scanf("%d%d", &N, &M);
      |  ~~~~~^~~~~~~~~~~~~~~~
grader.cpp:18:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   18 |   scanf("%d", &P[i]);
      |   ~~~~~^~~~~~~~~~~~~
grader.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   21 |  scanf("%d", &Q);
      |  ~~~~~^~~~~~~~~~
grader.cpp:23:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   23 |   scanf("%d", &d);
      |   ~~~~~^~~~~~~~~~

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 11508 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Incorrect 8 ms 512 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #4
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 1 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Incorrect 8 ms 512 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
0 / 31.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 11508 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #6
0 / 9.0

# Verdict Execution time Memory Grader output
1 Runtime error 59 ms 11508 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -