Submission #96426

# Submission time Handle Problem Language Result Execution time Memory
96426 2019-02-09T12:22:49 Z ics0503 Swap (BOI16_swap) C++17
0 / 100
2 ms 376 KB
#include<stdio.h>
#include<algorithm>
using namespace std;
int a[33][121212], n, A[33][121212], ADN[33];
void mkA(int dep, int w) {
	if (n < w)return;
	A[dep][ADN[dep]++] = w;
	a[dep][w] = a[dep - 1][w];
	mkA(dep, w * 2); mkA(dep, w * 2 + 1);
}
void cpy(int dep, int w) {
	if (n < w)return;
	a[dep][w] = a[dep + 1][w];
	cpy(dep, w * 2); cpy(dep, w * 2 + 1);
}
int go(int dep, int G, int w) {
	ADN[dep] = 0; mkA(dep, w);
	a[dep][w] = G;
	for (int x = 0; x < ADN[dep]; x++) {
		int now = A[dep][x];
		int l = now * 2, r = now * 2 + 1;
		if (l > n)continue;
		if (r > n && a[dep][now] > a[dep][l]) { swap(a[dep][now], a[dep][l]); continue; }
		if (a[dep][now] < a[dep][l] && a[dep][now] < a[dep][r])continue;
		else if (a[dep][l] < a[dep][r] && a[dep][l] < a[dep][now])swap(a[dep][now], a[dep][l]);
		else {
			int mn = min(a[dep][l], a[dep][now]);
			int mx = max(a[dep][l], a[dep][now]);
			a[dep][now] = a[dep][r];
			int L = go(dep + 1, mn, now * 2), R = go(dep + 1, mn, now * 2 + 1), p, q;
			if (L < R) p = now * 2, q = now * 2 + 1;
			else p = now * 2 + 1, q = now * 2;
			cpy(dep, p); go(dep + 1, mx, q); cpy(dep, q);
		}
	}
	for (int x = 0; x < ADN[dep]; x++)if (a[dep][A[dep][x]] == G)return A[dep][x];
}
int main() {
	scanf("%d", &n);
	for (int i = 1; i <= n; i++)scanf("%d", &a[0][i]);
	go(1, a[0][1], 1);
	for (int i = 1; i <= n; i++) printf("%d ", a[1][i]);
	return 0;
}

Compilation message

swap.cpp: In function 'int go(int, int, int)':
swap.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^
swap.cpp: In function 'int main()':
swap.cpp:39:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &n);
  ~~~~~^~~~~~~~~~
swap.cpp:40:35: 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", &a[0][i]);
                              ~~~~~^~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 2 ms 376 KB Output isn't correct
2 Halted 0 ms 0 KB -