Submission #66394

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
66394	2018-08-10 11:22:52	ansol4328	문명 (KOI17_civilization)	C++98	54 / 100	1056 ms	38144 KiB

civilization

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#include<stdio.h>
#include<memory.h>
#include<queue>
using namespace std;
int n, k;
int visit[2002][2002];
int p[4000002];
int cnt;
bool st[4000002];
void setup(int a)
{
    cnt=a;
    memset(p,-1,sizeof(p));
    memset(st,false,sizeof(st));
}
int f(int v)
{
    if(p[v]==-1) return v;
    p[v]=f(p[v]);
    return p[v];
}
void u(int v1, int v2) // v2 subtree -> v1 subtree
{
    v1=f(v1);
    v2=f(v2);
    if(v1==v2) return;
    if(st[v2]) cnt--;
 
 
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Compilation message (stderr)

civilization.cpp: In function 'int main()':
civilization.cpp:38:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&n,&k);
     ~~~~~^~~~~~~~~~~~~~~
civilization.cpp:43:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d",&y,&x);
         ~~~~~^~~~~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 35 / 35
• Subtask 3: 0 / 46