oj.uz

Submission #242258

# Submission time Handle Problem Language Result Execution time Memory
242258 2020-06-27T07:43:36 Z shenxy Magic Tree (CEOI19_magictree) C++11
3 / 100
 77 ms 22776 KB 
#include <cstdio>
#include <algorithm>
#include <vector>
#include <cstring>
using namespace std;
int n, m, k, d[100000];
long long dpt1[100000][22], w[100000];
vector<int> adjlist[100000];
long long dp1(int v, int x) {
	if (dpt1[v][x] != -1) return dpt1[v][x];
	if (x == 0) return dpt1[v][x] = 0;
	dpt1[v][x] = (d[v] == x ? w[v] : 0);
	for (int i: adjlist[v]) dpt1[v][x] += dp1(i, x - 1);
	return dpt1[v][x] = max(dpt1[v][x], dp1(v, x - 1));
}
int main() {
	scanf("%d %d %d", &n, &m, &k);
	if (k <= 20) {
		int p, v, D, W;
		for (int i = 1; i < n; ++i) {
			scanf("%d", &p);
			adjlist[p - 1].push_back(i);
		}
		fill_n(d, 100000, 0);
		fill_n(w, 100000, 0);
		for (int i = 0; i < m; ++i) {
			scanf("%d %d %d", &v, &D, &W);
			d[v - 1] = D;
			w[v - 1] = W;
		}
		memset(dpt1, -1, sizeof dpt1);
		printf("%lld", dp1(0, k + 1));
	} else {
		for (int i = 1; i < n; ++i) scanf("%d", &k);
		int v, d, w;
		long long ans = 0;
		for (int i = 0; i < m; ++i) {
			scanf("%d %d %d", &v, &d, &w);
			ans += w;
		}
		printf("%lld", ans);
	}
	return 0;
}

Compilation message

magictree.cpp: In function 'int main()':
magictree.cpp:17:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d", &n, &m, &k);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
magictree.cpp:21:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d", &p);
    ~~~~~^~~~~~~~~~
magictree.cpp:27:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d %d", &v, &D, &W);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
magictree.cpp:34:36: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for (int i = 1; i < n; ++i) scanf("%d", &k);
                               ~~~~~^~~~~~~~~~
magictree.cpp:38:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d %d %d", &v, &d, &w);
    ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 20992 KB Output is correct
2 Incorrect 16 ms 21120 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 28 ms 2688 KB Output is correct
2 Correct 26 ms 2688 KB Output is correct
3 Correct 54 ms 2688 KB Output is correct
4 Correct 54 ms 2688 KB Output is correct
5 Correct 54 ms 2808 KB Output is correct

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Incorrect 7 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 77 ms 22776 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 20992 KB Output is correct
2 Incorrect 16 ms 21120 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #6
0 / 13.0

# Verdict Execution time Memory Grader output
1 Incorrect 9 ms 2688 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 20992 KB Output is correct
2 Incorrect 16 ms 21120 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #8
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 20992 KB Output is correct
2 Incorrect 16 ms 21120 KB Output isn't correct
3 Halted 0 ms 0 KB -