Submission #40456

#	Time	Username	Problem	Language	Result	Execution time	Memory
40456		Pajaraja	Nice sequence (IZhO18_sequence)	C++14	100 / 100	1612 ms	52904 KiB

sequence

#include <bits/stdc++.h>
using namespace std;
vector<int> g[400007];
int pv[400007],deg[400007],parc[400007];
int nzd(int a,int b)
{
	if(a==0) return b;
	return nzd(b%a,a);
}
int main()
{
	int t;
	scanf("%d",&t);
	while(t--)
	{
		int n,m;
		scanf("%d%d",&n,&m);
		int x=m+n-1-nzd(m,n);
		printf("%d\n",x);
		fill(deg,deg+x+1,0);
	    for(int i=0;i<=x;i++) g[i].clear();
	    for(int i=n;i<=x;i++) 
	    {
	        g[i].push_back(i-n);
	        deg[i-n]++;
	    }
	    for(int i=m;i<=x;i++)
	    {
		    g[i-m].push_back(i);
		    deg[i]++;
	    }
	    queue<int> q;
	    for(int i=0;i<=x;i++) if(deg[i]==0) q.push(i);
		int cnt=0;
		while(!q.empty())
		{
			int u=q.front();
			pv[u]=cnt++;
			q.pop();
			for(int i=0;i<g[u].size();i++) 
			{
				deg[g[u][i]]--;
				if(deg[g[u][i]]==0) q.push(g[u][i]);
			}
		}
		for(int i=1;i<=x;i++) printf("%d ",pv[i]-pv[i-1]);
		printf("\n");
	}
}

Compilation message (stderr)

sequence.cpp: In function 'int main()':
sequence.cpp:40:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(int i=0;i<g[u].size();i++) 
                 ^
sequence.cpp:13:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&t);
                ^
sequence.cpp:17:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&n,&m);
                      ^

• Subtask 1: 6 / 6
• Subtask 2: 9 / 9
• Subtask 3: 14 / 14
• Subtask 4: 15 / 15
• Subtask 5: 14 / 14
• Subtask 6: 18 / 18
• Subtask 7: 24 / 24