Submission #895152

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Source Code Expand

#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
using namespace std;

const int N = 100100;
int n, m, q;
int a[N];
int pos[N];
int len[N];
int cnt[N];
int b[N];

int main()
{
//	freopen("input.txt", "r", stdin);
//	freopen("output.txt", "w", stdout);


	scanf("%d%d%d", &n, &m, &q);
	for (int i = 0; i < q; i++)
		scanf("%d", &a[i]);
	reverse(a, a + q);
	for (int i = 1; i <= m; i++)
		pos[i] = -1;
	for (int i = 0; i < q; i++)
	{
		int x = a[i];
		if (pos[x] == -1)
		{
			pos[x] = len[0];
			b[len[0]] = x;
			len[0]++;
			cnt[x] = 1;
		}
		else
		{
			int y = cnt[x];
			if (y >= n) continue;
			if (len[y] < pos[x]) continue;
			len[y]++;
			cnt[x]++;
		}
	}
	/*
	for (int i = 0; i < n; i++)
		printf("%d ", len[i]);
	printf("\n");
	for (int i = 0; i < len[0]; i++)
		printf("%d ", b[i]);
	printf("\n");
	*/
	int minUnused = m + 1;
	for (int x = 1; x <= m; x++)
		if (pos[x] == -1)
		{
			minUnused = x;
			break;
		}
	int L = len[0];
	while(L > 0 && b[L - 1] < minUnused)
	{
		L--;
		minUnused = b[L];
	}
	bool ok = 1;
	for (int i = 0; i < n; i++)
		ok &= len[i] >= L;
	if (ok)
		printf("Yes\n");
	else
		printf("No\n");

	return 0;
}

Submission Info

Compile Error

./Main.cpp: In function ‘int main()’:
./Main.cpp:21:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d%d", &n, &m, &q);
                             ^
./Main.cpp:23:21: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &a[i]);
                     ^

Judge Result