oj.uz

답안 #896316

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
896316 2024-01-01T09:07:03 Z nightfal 전선 연결 (IOI17_wiring) C++14
20 / 100
 20 ms 6848 KB 
#include "wiring.h"
#include <climits>
#include <stdlib.h>
#include <algorithm>
using namespace std;
 
bool isSubtask1(std::vector<int> r, std::vector<int> b) {return r.size()<=200 && b.size()<=200;}
bool isSubtask2(std::vector<int> r, std::vector<int> b) {return r[r.size()-1]<b[0];}
bool isSubtask3(std::vector<int> r, std::vector<int> b) {
  int n=r.size(), m=b.size();
  vector<int> a(n+m);
  for(int i=0, j=0; i<m || j<n;) 
    if (i==n) {a[i+j]=1; j++;}
    else if(j==m) {a[j+i]=0; i++;}
    else if (r[i]<b[j]) {a[j+i] = 0; i++;}
    else {a[i+j] = 1; j++;}

  int cnt = 1;
  for(int k=1; k<n+m; k++) {
    cnt = a[k]==a[k-1]? cnt+1:0;
     if (cnt > 7) return false;
  }
  return true;
}
 
long long subtask1(std::vector<int>, std::vector<int>);
long long subtask2(std::vector<int>, std::vector<int>, int, int, int, int);
long long subtask3(std::vector<int>, std::vector<int>);
 
long long min_total_length(std::vector<int> r, std::vector<int> b) {
  	if (isSubtask1(r,b)) return subtask1(r,b);
  	if (isSubtask2(r,b)) return subtask2(r,b,0,r.size()-1,0,b.size()-1);
    else if (isSubtask3(r,b)) return subtask3(r,b);
//     else if (isSubtask4(r,b)) return subtask4(r,b);
//     else return fullTask(r,b);
    return 0;
}
 
long long subtask1(std::vector<int> r, std::vector<int> b) {
	int n = r.size(), m = b.size();
    long long dp[n][m];
  	dp[0][0] = abs(r[0]-b[0]);
  	for(int i=1; i<n; i++) dp[i][0] = dp[i-1][0] + abs(r[i]-b[0]);
    for(int j=1; j<m; j++) dp[0][j] = dp[0][j-1] + abs(r[0]-b[j]);
  	for(int i=1; i<n; i++)  	
      for(int j=1; j<m; j++)
        dp[i][j] = min(min(dp[i-1][j],dp[i][j-1]),dp[i-1][j-1]) + abs(r[i]-b[j]);

	return dp[n-1][m-1];
}
 
long long subtask2(std::vector<int> arr1, std::vector<int> arr2, int s1, int e1, int s2, int e2) {
  long long sum1=0, sum2=0, n = e1-s1+1, m=e2-s2+1;
  for(int i=s1; i<=e1; i++) sum1 += arr1[e1] - arr1[i];
  for(int i=s2; i<=e2; i++) sum2 += arr2[i] - arr2[s2];
  return sum1+sum2+max(n,m)*(arr2[s2]-arr1[e1]);
}

long long subtask3(std::vector<int> r, std::vector<int> b) {
    int n = r.size(), m = b.size();
    vector<pair<int,int>> a(n+m);
    
    for(int i=0, j=0; i<n || j<m;) {
        if (i==n) {a[i+j] = make_pair(j,1); j++;}
        else if (j==m) {a[i+j] = make_pair(i,0); i++;}
        else if (r[i]<b[j]) {a[i+j] = make_pair(i,0); i++;}
        else {a[i+j] = make_pair(j,1); j++;}
    }

    vector<long long> dp(n+m,LLONG_MAX);
    dp[0] = 0;
    int prev = 0, curr;
    for(curr=1; curr<n+m; curr++)
        if (a[curr].second != a[curr-1].second) break;
        else dp[curr] = 0;
 
    if (a[0].second==0) 
        dp[curr] = subtask2(r,b,a[prev].first,a[curr-1].first,a[curr].first,a[curr].first);
    else 
        dp[curr] = subtask2(b,r,a[prev].first,a[curr-1].first,a[curr].first,a[curr].first);

    int start = curr+1;
    for(int i=start; i<n+m; i++) {
        if (a[i].second != a[i-1].second) {prev = curr; curr = i;}
        for(int j =prev; j<curr; j++) {
            long long temp;
            if (a[prev].second==0)
                temp = subtask2(r,b,a[j].first,a[curr-1].first,a[curr].first,a[i].first);
            else
                temp = subtask2(b,r,a[j].first,a[curr-1].first,a[curr].first,a[i].first);
            if (dp[i]>temp+dp[j-1]) dp[i] = temp+dp[j-1];            
        }
    }
    return dp[n+m-1];
}

Compilation message

wiring.cpp: In function 'long long int subtask1(std::vector<int>, std::vector<int>)':
wiring.cpp:46:7: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
   46 |       for(int j=1; j<m; j++)
      |       ^~~
wiring.cpp:49:2: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for'
   49 |  return dp[n-1][m-1];
      |  ^~~~~~

Subtask #1
7.0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct

Subtask #2
13.0 / 13.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 12 ms 2140 KB Output is correct
4 Correct 12 ms 2040 KB Output is correct
5 Correct 13 ms 2140 KB Output is correct
6 Correct 16 ms 2752 KB Output is correct
7 Correct 17 ms 2760 KB Output is correct
8 Correct 20 ms 2752 KB Output is correct
9 Correct 17 ms 2756 KB Output is correct

Subtask #3
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Runtime error 20 ms 6848 KB Execution killed with signal 11
4 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Incorrect 15 ms 3516 KB 3rd lines differ - on the 1st token, expected: '373710605', found: '0'
3 Halted 0 ms 0 KB -

Subtask #5
0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 604 KB Output is correct
8 Correct 1 ms 604 KB Output is correct
9 Correct 0 ms 604 KB Output is correct
10 Correct 1 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 0 ms 604 KB Output is correct
13 Correct 1 ms 604 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 0 ms 604 KB Output is correct
16 Correct 1 ms 604 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 12 ms 2140 KB Output is correct
20 Correct 12 ms 2040 KB Output is correct
21 Correct 13 ms 2140 KB Output is correct
22 Correct 16 ms 2752 KB Output is correct
23 Correct 17 ms 2760 KB Output is correct
24 Correct 20 ms 2752 KB Output is correct
25 Correct 17 ms 2756 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Runtime error 20 ms 6848 KB Execution killed with signal 11
29 Halted 0 ms 0 KB -