Submission #27945

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
279452017-07-14 13:06:30suhgyuho_williamPort Facility (JOI17_port_facility)C++14
100 / 100
1403 ms80012 KiB
#include <bits/stdc++.h>
#define lld long long
#define pii pair<int,int>
#define pll pair<lld,lld>
#define pb push_back
#define next nextt
#define left leftt
#define right rightt
#define Inf 1000000000
#define Linf 1000000000000000000LL
#define Mod 1000000007LL
using namespace std;
int N; lld ans,inv;
struct data{
int x,y;
bool operator < (const data &cmp) const{
if(x != cmp.x) return x < cmp.x;
return y < cmp.y;
}
}a[1000002];
int par[2000002];
map<int,int> Map;
void impossible(){puts("0");exit(0);}
int getpar(int x){return (x == par[x])?x:(par[x]=getpar(par[x]));};
void merge(int x,int y){
x = getpar(x); y = getpar(y);
 
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Compilation message (stderr)

port_facility.cpp: In function 'int main()':
port_facility.cpp:39:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N); ans = 1;
                ^
port_facility.cpp:41:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&a[i].x,&a[i].y);
                                 ^
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