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답안 #1015237

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1015237 2024-07-06T07:48:06 Z 김은성(#10845) Shortcut (IOI16_shortcut) C++14
0 / 100
 1 ms 600 KB 
#include "shortcut.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll p[200009];
ll dist[1009][1009];
const ll INF = 0x3fffffffffffffffll;
long long find_shortcut2(int n, std::vector<int> L, std::vector<int> d, int c)
{
    int i, j, k, l;
    for(i=0; i<n; i++){
        for(j=0; j<n; j++){
            dist[i][j] = INF;
            if(i==j)
                dist[i][j] = 0;
        }
    }
    for(i=0; i<n-1; i++){
        dist[i][i+1] = dist[i+1][i] = L[i];
    }
    for(k=0; k<n; k++){
        for(i=0; i<n; i++){
            for(j=0; j<n; j++){
                dist[i][j] = min(dist[i][j], dist[i][k] + dist[k][j]);
            }
        }
    }
    ll ans = INF;
    for(k=0; k<n; k++){
        for(l=k+1; l<n; l++){
            ll cur = 0;
            for(i=0; i<n; i++){
                for(j=i+1; j<n; j++){
                    cur = max(cur, min(dist[i][j], min(dist[i][k] + dist[l][j] + c, dist[i][l] + dist[j][k] + c)) + d[i]+d[j]);
                }
            }
            if(cur < 200000)
                printf("k=%d l=%d\n", k, l);
            ans = min(ans, cur);
        }
    }
    return ans;
}


long long find_shortcut(int n, std::vector<int> L, std::vector<int> d, int c)
{
    int i, j, k, l;
    for(i=0; i<n-1; i++){
        p[i+1] = p[i] + L[i];
    }
    ll ans = INF, org = 0;
    for(i=0; i<n; i++){
        for(j=i+1; j<n; j++){
            org = max(org, p[j]+d[j] - p[i]+d[i]);
        }
    }
    ans = org;
    for(k=0; k<n; k++){
        for(l=k+1; l<n; l++){
            ll cur = 0;
            int j = k;
            ll mx = p[k] + d[k];
            for(i=k; i<=l; i++){
                while(j<l && p[j+1]-p[i] < c + p[l]+p[i]-p[k]-p[j+1]){
                    j++;
                    mx = max(mx, p[j] + d[j]);
                }
                if(j<=i)
                    continue;
               // printf("i=%d j=%d mx=%lld p[i]=%d d[i]=%d\n", i, j, mx, p[i], d[i]);
                cur = max(cur, mx - p[i] + d[i]);
            }
            j = l+1;
            mx = -INF;
            for(i=l; i>=k; i--){
                while(j>k && p[j-1]-p[i] >= c + p[l]+p[i]-p[k]-p[j-1]){
                    j--;
                    mx = max(mx, d[j] - p[j]);
                }
                if(j<=i)
                    continue;
               // printf("i=%d j=%d\n", i, j);
                cur = max(cur, c + p[l] + p[i] + d[i] - p[k] + mx);
            }
            //printf("cur=%lld\n", cur);
            mx = -INF;
            for(i=0; i<k; i++){
                mx = max(mx, d[i] - p[i]);
            }
            for(j=k; j<=l; j++){
                cur = max(cur,mx + d[j] + min(p[j], c + p[l] + p[k] - p[j]));
            }
            ll mx2 = -INF;
            for(j=l+1; j<n; j++){
                mx2 = max(mx2, d[j] + p[j]);
            }
            for(i=k; i<=l; i++){
                cur = max(cur, mx2+d[i] + min(-p[i], -p[l]-p[k]+p[i]+c));
            }
            mx = max(mx, d[k]-p[k]);
            mx2 = max(mx2, d[l]+p[l]);
            cur = max(cur, mx + mx2 - p[l] + p[k] + c);
            for(i=0; i<=k; i++)
                cur = max(cur, p[i] + d[i]);
            for(i=n-1; i>=l; i--)
                cur = max(cur, p[n-1] - p[i] + d[i]);
            //printf("k=%d l=%d cur=%lld\n", k, l, cur);
            ans = min(ans, cur);
        }
    }
   // long long t2 = find_shortcut2(n, L, d, c);
   // printf("t2=%lld\n", t2);
    return ans;
}

Subtask #1
0 / 9.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #2
0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #3
0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #4
0 / 7.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #6
0 / 22.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #7
0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -

Subtask #8
0 / 3.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB n = 4, 80 is a correct answer
2 Correct 0 ms 348 KB n = 9, 110 is a correct answer
3 Correct 0 ms 348 KB n = 4, 21 is a correct answer
4 Correct 0 ms 348 KB n = 3, 4 is a correct answer
5 Correct 0 ms 348 KB n = 2, 62 is a correct answer
6 Correct 0 ms 348 KB n = 2, 3 is a correct answer
7 Correct 0 ms 348 KB n = 3, 29 is a correct answer
8 Correct 1 ms 348 KB n = 2, 3 is a correct answer
9 Correct 1 ms 348 KB n = 2, 3 is a correct answer
10 Correct 0 ms 348 KB n = 2, 2000000001 is a correct answer
11 Correct 0 ms 348 KB n = 2, 3000000000 is a correct answer
12 Correct 1 ms 348 KB n = 3, 3000000000 is a correct answer
13 Correct 0 ms 348 KB n = 3, 3000000000 is a correct answer
14 Correct 0 ms 348 KB n = 4, 3000000001 is a correct answer
15 Correct 0 ms 348 KB n = 4, 4000000000 is a correct answer
16 Correct 1 ms 600 KB n = 5, 4000000000 is a correct answer
17 Correct 1 ms 348 KB n = 10, 1000000343 is a correct answer
18 Correct 1 ms 344 KB n = 10, 3189 is a correct answer
19 Correct 1 ms 348 KB n = 10, 7000000000 is a correct answer
20 Correct 0 ms 344 KB n = 5, 12 is a correct answer
21 Correct 0 ms 348 KB n = 5, 25 is a correct answer
22 Correct 1 ms 344 KB n = 2, 122 is a correct answer
23 Incorrect 0 ms 348 KB n = 10, incorrect answer: jury 117 vs contestant 111
24 Halted 0 ms 0 KB -