Submission #27888

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
278882017-07-14 11:06:45suhgyuho_williamPort Facility (JOI17_port_facility)C++14
0 / 100
0 ms26436 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[2000002],in[1000002];
bool check[1000002];
void dfs(int x){
check[x] = true;
for(int i=x+1; i<=N; i++){
if(check[i]) continue;
if(a[x].x < a[i].x && a[i].x < a[x].y && a[x].y < a[i].y) dfs(i);
 
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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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