Submission #32324

#	Time	Username	Problem	Language	Result	Execution time	Memory
32324		dqhungdl	File Paths (BOI15_fil)	C++14	0 / 100	0 ms	2220 KiB

fil

#include <bits/stdc++.h>
using namespace std;

int n,m,k,s,p[6005],l[6005];

void Sub2()
{
    for(int i=n+1;i<=n+m;i++)
    {
        int u=i,len=0;
        bool check=false;
        while(u>0)
        {
            len+=l[u];
            if(len>k)
                break;
            if(len==k||len+s==k)
            {
                printf("YES\n");
                check=true;
                break;
            }
            u=p[u];
        }
        if(check==false)
            printf("NO\n");
    }
}

int main()
{
    ios_base::sync_with_stdio(false);
    //freopen("FIL.INP","r",stdin);
    scanf("%d%d%d%d",&n,&m,&k,&s);
    s++;
    for(int i=1;i<=n+m;i++)
    {
        scanf("%d%d",&p[i],&l[i]);
        l[i]++;
    }
    if(n<=3000&&m<=3000)
        Sub2();
}

Compilation message (stderr)

fil.cpp: In function 'int main()':
fil.cpp:34:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d%d%d%d",&n,&m,&k,&s);
                                  ^
fil.cpp:38:34: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d",&p[i],&l[i]);
                                  ^

• Subtask 1: 0 / 33
• Subtask 2: 0 / 33
• Subtask 3: 0 / 34