oj.uz

Submission #752548

# Submission time Handle Problem Language Result Execution time Memory
752548 2023-06-03T07:24:52 Z wenqi Archery (IOI09_archery) C++17
20 / 100
 2000 ms 5964 KB 
// trans rights
#include <bits/extc++.h>
using namespace std;
using ll = long long;

#ifdef DEBUG
#define D(args...) fprintf(stderr, args)
#else
#define D(...)
#endif

int N, R;
int rk[400005];
int me;

int G1[200005], G2[200005];

int f(int x, int y)
{
	if (x != y)
		return 0;
	return x;
}

int take_best(int x)
{
	if (x == 1)
		return 1;
	return -1;
}

int take_worst(int x)
{
	if (x == -1)
		return -1;
	return 1;
}

void trans(int *X)
{
	int x = X[0], y = X[N - 1];
	int w = f(take_worst(x), take_worst(y));
	for (int i = 0; i < N - 1; i++)
	{
		int p = i ? take_worst(X[i]) : take_best(X[i]);
		int q = take_best(X[i + 1]);
		X[i] = f(p, q);
	}
	X[N - 1] = w;
}

int main(int argc, const char *argv[])
{
	scanf(" %d %d", &N, &R);
	R = (R - 2 * N) % N + 2 * N;
	scanf(" %d", &me);
	for (int i = 0; i < 2 * N - 1; i++)
		scanf(" %d", &rk[i]);
	pair<int, int> ans = {N, 0};
	for (int i = 0; i < N; i++)
	{
		for (int j = 0; j < i; j++)
		{
			int x = rk[2 * j], y = rk[2 * j + 1];
			if ((x < me) == (y < me))
				G1[j] = G2[j] = x < me ? -1 : 1;
			else
				G1[j] = G2[j] = 0;
		}
		int m = rk[2 * i];
		G1[i] = m < me ? -1 : 1;
		G2[i] = 0;
		for (int j = i + 1; j < N; j++)
		{
			int x = rk[2 * j - 1], y = rk[2 * j];
			if ((x < me) == (y < me))
				G1[j] = G2[j] = x < me ? -1 : 1;
			else
				G1[j] = G2[j] = 0;
		}
		for (int k = 0; k < R; k++)
		{
			trans(G1);
			trans(G2);
		}
		int e = 0;
		for (int j = 0; j < N; j++)
			if (G1[j] != G2[j])
				e = j;
		ans = min(ans, {e, -i});
	}
	printf("%d", -ans.second + 1);
	return 0;
}

Compilation message

archery.cpp: In function 'int main(int, const char**)':
archery.cpp:54:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   54 |  scanf(" %d %d", &N, &R);
      |  ~~~~~^~~~~~~~~~~~~~~~~~
archery.cpp:56:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   56 |  scanf(" %d", &me);
      |  ~~~~~^~~~~~~~~~~~
archery.cpp:58:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   58 |   scanf(" %d", &rk[i]);
      |   ~~~~~^~~~~~~~~~~~~~~

Subtask #1
4.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Execution timed out 2075 ms 320 KB Time limit exceeded
3 Correct 8 ms 212 KB Output is correct
4 Execution timed out 2057 ms 320 KB Time limit exceeded
5 Correct 0 ms 312 KB Output is correct
6 Correct 56 ms 308 KB Output is correct

Subtask #2
16.0 / 94.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 212 KB Output is correct
2 Correct 57 ms 212 KB Output is correct
3 Execution timed out 2082 ms 320 KB Time limit exceeded
4 Execution timed out 2056 ms 692 KB Time limit exceeded
5 Execution timed out 2062 ms 5180 KB Time limit exceeded
6 Correct 44 ms 212 KB Output is correct
7 Execution timed out 2070 ms 316 KB Time limit exceeded
8 Execution timed out 2070 ms 656 KB Time limit exceeded
9 Execution timed out 2076 ms 852 KB Time limit exceeded
10 Execution timed out 2079 ms 340 KB Time limit exceeded
11 Execution timed out 2037 ms 852 KB Time limit exceeded
12 Execution timed out 2072 ms 340 KB Time limit exceeded
13 Execution timed out 2065 ms 3732 KB Time limit exceeded
14 Execution timed out 2069 ms 340 KB Time limit exceeded
15 Execution timed out 2064 ms 1108 KB Time limit exceeded
16 Correct 52 ms 312 KB Output is correct
17 Execution timed out 2086 ms 316 KB Time limit exceeded
18 Execution timed out 2051 ms 340 KB Time limit exceeded
19 Execution timed out 2035 ms 340 KB Time limit exceeded
20 Execution timed out 2077 ms 340 KB Time limit exceeded
21 Execution timed out 2063 ms 852 KB Time limit exceeded
22 Execution timed out 2076 ms 1108 KB Time limit exceeded
23 Execution timed out 2061 ms 5372 KB Time limit exceeded
24 Correct 75 ms 308 KB Output is correct
25 Execution timed out 2080 ms 340 KB Time limit exceeded
26 Execution timed out 2079 ms 340 KB Time limit exceeded
27 Execution timed out 2066 ms 852 KB Time limit exceeded
28 Execution timed out 2075 ms 3908 KB Time limit exceeded
29 Execution timed out 2072 ms 340 KB Time limit exceeded
30 Execution timed out 2063 ms 340 KB Time limit exceeded
31 Execution timed out 2065 ms 852 KB Time limit exceeded
32 Execution timed out 2057 ms 5228 KB Time limit exceeded
33 Correct 61 ms 212 KB Output is correct
34 Correct 56 ms 340 KB Output is correct
35 Execution timed out 2091 ms 340 KB Time limit exceeded
36 Execution timed out 2049 ms 340 KB Time limit exceeded
37 Execution timed out 2073 ms 704 KB Time limit exceeded
38 Execution timed out 2063 ms 980 KB Time limit exceeded
39 Correct 54 ms 212 KB Output is correct
40 Execution timed out 2071 ms 340 KB Time limit exceeded
41 Execution timed out 2069 ms 340 KB Time limit exceeded
42 Execution timed out 2064 ms 340 KB Time limit exceeded
43 Execution timed out 2083 ms 340 KB Time limit exceeded
44 Execution timed out 2071 ms 468 KB Time limit exceeded
45 Execution timed out 2069 ms 852 KB Time limit exceeded
46 Execution timed out 2052 ms 836 KB Time limit exceeded
47 Execution timed out 2062 ms 5964 KB Time limit exceeded