Submission #212001

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
212001	2020-03-21 23:11:52	sealnot123	Making Friends on Joitter is Fun (JOI20_joitter2)	C++14	100 / 100	703 ms	46328 KiB

joitter2

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#include<bits/stdc++.h>
#define x first
#define y second
#define pb push_back
#define eb emplace_back
#define all(a) (a).begin(),(a).end()
#define SZ(a) (int)(a).size()
using namespace std;
typedef pair<int,int> PII;
typedef long long LL;
typedef double DD;
typedef long double LD;
typedef pair<LL,LL> PLL;
typedef pair<DD,DD> PDD;
typedef vector<int> VI;
typedef vector<LL> VL;
const int N=100007;
LL ans = 0;
set< PII > II[N], OO[N];
set< PII >::iterator iit;
int p[N], s[N];
int fin(int a){
  if(a == p[a]) return a;
  return p[a] = fin(p[a]);
}
 
 
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Compilation message (stderr)

joitter2.cpp: In function 'int main()':
joitter2.cpp:93:8: warning: unused variable 'j' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
        ^
joitter2.cpp:93:10: warning: unused variable 'k' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
          ^
joitter2.cpp:93:12: warning: unused variable 'l' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
            ^
joitter2.cpp:93:20: warning: unused variable 'd' [-Wunused-variable]
  int i,j,k,l,a,b,c,d;
                    ^
joitter2.cpp:95:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~
joitter2.cpp:101:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&a,&b);
   ~~~~~^~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 16 / 16
• Subtask 3: 83 / 83