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Submission #838513

# Submission time Handle Problem Language Result Execution time Memory
838513 2023-08-27T10:13:42 Z vjudge1 Toll (BOI17_toll) C++17
100 / 100
 431 ms 179780 KB 
#include <iostream>
using namespace std;
struct MATRIX {
	long long int a[5][5];
	MATRIX() {
		for (int i = 0; i < 5; i++) {
			for (int j = 0; j < 5; j++) {
				a[i][j] = 999999999;
			}
		}
	}
};
MATRIX f[50005][18];
MATRIX mul(MATRIX a, MATRIX b){
    MATRIX res;
    for (int i = 0; i < 5; i++) {
        for (int j = 0; j < 5; j++) {
            res.a[i][j] = 999999999;
            for (int k = 0; k < 5; k++) {
                res.a[i][j] = min(res.a[i][j], a.a[i][k] + b.a[k][j]);
            }
        }
    }
    return res;
}
int main() {
	int n, k, m, q;
    cin >> k >> n >> m >> q;
    for (int i = 1; i <= m; i++) {
    	int a, b, t;
    	cin >> a >> b >> t;
    	f[a / k][0].a[a % k][b % k] = t;
    }
    for (int i = 1; (1 << i) <= n; i++){
    	for (int j = 0; j + (1 << i) - 1 <= n; j++) {
    		f[j][i] = mul(f[j][i - 1], f[j + (1 << (i - 1))][i - 1]);
    	}
    }
    for (int jj = 0; jj < q; jj++) {
    	int a, b;
    	cin >> a >> b;
    	MATRIX s;
    	for (int j = 0; j < 5; j++) {
    		s.a[j][j] = 0;
    	}
    	if (a == b) {
    		cout << 0 << endl;
    		continue;
    	}
    	int h = a / k, g = b / k;
    	if (g <= h) {
    		cout << -1 << endl;
    	}
    	else {
    		int l = g - h;
    		for (int j = 16; j >= 0; j--) {
    			if (l & (1 << j)) {
    				s = mul(s, f[h][j]);
    				h += (1 << j);
    			}
    		}
    		if (s.a[a % k][b % k] == 999999999) cout << -1 << endl;
    		else cout << s.a[a % k][b % k] << endl;
    	}
    }
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 337 ms 177336 KB Output is correct
2 Correct 67 ms 176416 KB Output is correct
3 Correct 66 ms 176308 KB Output is correct
4 Correct 66 ms 176372 KB Output is correct
5 Correct 73 ms 176408 KB Output is correct
6 Correct 74 ms 176384 KB Output is correct
7 Correct 75 ms 176328 KB Output is correct
8 Correct 347 ms 177300 KB Output is correct
9 Correct 339 ms 177296 KB Output is correct
10 Correct 313 ms 176560 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 350 ms 177624 KB Output is correct
2 Correct 67 ms 176304 KB Output is correct
3 Correct 68 ms 176308 KB Output is correct
4 Correct 67 ms 176308 KB Output is correct
5 Correct 70 ms 176396 KB Output is correct
6 Correct 69 ms 176392 KB Output is correct
7 Correct 93 ms 176400 KB Output is correct
8 Correct 92 ms 176488 KB Output is correct
9 Correct 331 ms 177304 KB Output is correct
10 Correct 372 ms 178740 KB Output is correct
11 Correct 356 ms 178176 KB Output is correct
12 Correct 338 ms 177724 KB Output is correct
13 Correct 311 ms 178832 KB Output is correct
14 Correct 238 ms 177764 KB Output is correct
15 Correct 231 ms 177588 KB Output is correct
16 Correct 233 ms 177628 KB Output is correct

Subtask #3
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 176344 KB Output is correct
2 Correct 68 ms 176384 KB Output is correct
3 Correct 68 ms 176352 KB Output is correct
4 Correct 72 ms 176332 KB Output is correct
5 Correct 69 ms 176424 KB Output is correct
6 Correct 71 ms 176328 KB Output is correct
7 Correct 74 ms 176384 KB Output is correct
8 Correct 72 ms 176436 KB Output is correct
9 Correct 75 ms 176588 KB Output is correct
10 Correct 305 ms 177224 KB Output is correct
11 Correct 322 ms 177852 KB Output is correct
12 Correct 358 ms 178636 KB Output is correct
13 Correct 358 ms 178764 KB Output is correct
14 Correct 334 ms 178144 KB Output is correct
15 Correct 229 ms 177604 KB Output is correct
16 Correct 228 ms 177548 KB Output is correct

Subtask #4
31.0 / 31.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 176344 KB Output is correct
2 Correct 68 ms 176384 KB Output is correct
3 Correct 68 ms 176352 KB Output is correct
4 Correct 72 ms 176332 KB Output is correct
5 Correct 69 ms 176424 KB Output is correct
6 Correct 71 ms 176328 KB Output is correct
7 Correct 74 ms 176384 KB Output is correct
8 Correct 72 ms 176436 KB Output is correct
9 Correct 75 ms 176588 KB Output is correct
10 Correct 305 ms 177224 KB Output is correct
11 Correct 322 ms 177852 KB Output is correct
12 Correct 358 ms 178636 KB Output is correct
13 Correct 358 ms 178764 KB Output is correct
14 Correct 334 ms 178144 KB Output is correct
15 Correct 229 ms 177604 KB Output is correct
16 Correct 228 ms 177548 KB Output is correct
17 Correct 340 ms 177920 KB Output is correct
18 Correct 68 ms 176392 KB Output is correct
19 Correct 68 ms 176316 KB Output is correct
20 Correct 68 ms 176388 KB Output is correct
21 Correct 68 ms 176360 KB Output is correct
22 Correct 67 ms 176376 KB Output is correct
23 Correct 82 ms 176436 KB Output is correct
24 Correct 80 ms 176392 KB Output is correct
25 Correct 78 ms 176464 KB Output is correct
26 Correct 79 ms 176496 KB Output is correct
27 Correct 312 ms 177172 KB Output is correct
28 Correct 355 ms 178628 KB Output is correct
29 Correct 370 ms 178888 KB Output is correct
30 Correct 343 ms 178260 KB Output is correct

Subtask #5
44.0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 337 ms 177336 KB Output is correct
2 Correct 67 ms 176416 KB Output is correct
3 Correct 66 ms 176308 KB Output is correct
4 Correct 66 ms 176372 KB Output is correct
5 Correct 73 ms 176408 KB Output is correct
6 Correct 74 ms 176384 KB Output is correct
7 Correct 75 ms 176328 KB Output is correct
8 Correct 347 ms 177300 KB Output is correct
9 Correct 339 ms 177296 KB Output is correct
10 Correct 313 ms 176560 KB Output is correct
11 Correct 350 ms 177624 KB Output is correct
12 Correct 67 ms 176304 KB Output is correct
13 Correct 68 ms 176308 KB Output is correct
14 Correct 67 ms 176308 KB Output is correct
15 Correct 70 ms 176396 KB Output is correct
16 Correct 69 ms 176392 KB Output is correct
17 Correct 93 ms 176400 KB Output is correct
18 Correct 92 ms 176488 KB Output is correct
19 Correct 331 ms 177304 KB Output is correct
20 Correct 372 ms 178740 KB Output is correct
21 Correct 356 ms 178176 KB Output is correct
22 Correct 338 ms 177724 KB Output is correct
23 Correct 311 ms 178832 KB Output is correct
24 Correct 238 ms 177764 KB Output is correct
25 Correct 231 ms 177588 KB Output is correct
26 Correct 233 ms 177628 KB Output is correct
27 Correct 67 ms 176344 KB Output is correct
28 Correct 68 ms 176384 KB Output is correct
29 Correct 68 ms 176352 KB Output is correct
30 Correct 72 ms 176332 KB Output is correct
31 Correct 69 ms 176424 KB Output is correct
32 Correct 71 ms 176328 KB Output is correct
33 Correct 74 ms 176384 KB Output is correct
34 Correct 72 ms 176436 KB Output is correct
35 Correct 75 ms 176588 KB Output is correct
36 Correct 305 ms 177224 KB Output is correct
37 Correct 322 ms 177852 KB Output is correct
38 Correct 358 ms 178636 KB Output is correct
39 Correct 358 ms 178764 KB Output is correct
40 Correct 334 ms 178144 KB Output is correct
41 Correct 229 ms 177604 KB Output is correct
42 Correct 228 ms 177548 KB Output is correct
43 Correct 340 ms 177920 KB Output is correct
44 Correct 68 ms 176392 KB Output is correct
45 Correct 68 ms 176316 KB Output is correct
46 Correct 68 ms 176388 KB Output is correct
47 Correct 68 ms 176360 KB Output is correct
48 Correct 67 ms 176376 KB Output is correct
49 Correct 82 ms 176436 KB Output is correct
50 Correct 80 ms 176392 KB Output is correct
51 Correct 78 ms 176464 KB Output is correct
52 Correct 79 ms 176496 KB Output is correct
53 Correct 312 ms 177172 KB Output is correct
54 Correct 355 ms 178628 KB Output is correct
55 Correct 370 ms 178888 KB Output is correct
56 Correct 343 ms 178260 KB Output is correct
57 Correct 431 ms 179780 KB Output is correct
58 Correct 339 ms 177352 KB Output is correct
59 Correct 367 ms 178144 KB Output is correct