Submission #166944

#	Time	Username	Problem	Language	Result	Execution time	Memory
166944		AKaan37	Port Facility (JOI17_port_facility)	C++17	10 / 100	6087 ms	46144 KiB

port_facility

#include <bits/stdc++.h>

using namespace std;

typedef long long lo;
typedef pair< lo,lo > PII;

#define fi first
#define se second
#define int long long
#define mp make_pair
#define pb push_back
#define fio() ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL)
#define FOR for(int i=1;i<=n;i++)
#define mid ((start+end)/2)
#define ort ((bas+son)/2)

const lo MAX = -1000000000000000000;
const lo MIN = 1000000000000000000;
const lo inf = 1000000000;
const lo KOK = 100000;
const lo LOG = 30;
const lo li = 1000005;
const lo mod = 1000000007;

int n,m,b[li],a[li],k,flag,t;
int cev=1;
PII p[li];
string s;
//~ vector<int> v[4];

inline int mul(int x,int y){
	return (x%mod)*(y%mod)%mod;
}

inline int add(int x,int y){
	if(x+y>=mod)return x+y-mod;
	return x+y;
}

inline void f(int sira,vector<int> v[4]){
	if(sira>n){cev=add(cev,1);return ;}
	flag=1;
	int flag1=1;
	for(int j=0;j<(int)v[0].size();j++){
		if(v[0][j]>p[sira].fi && v[0][j]<p[sira].se)flag=0;
	}
	for(int j=0;j<(int)v[1].size();j++){
		if(v[1][j]>p[sira].fi && v[1][j]<p[sira].se)flag1=0;
	}
	vector<int> v1[4];
	v1[0]=v[0];
	v1[1]=v[1];
	v1[0].pb(p[sira].se);
	vector<int> v2[4];
	v2[0]=v[0];
	v2[1]=v[1];
	v2[1].pb(p[sira].se);
	if(flag==1)f(sira+1,v1);
	if(flag1==1)f(sira+1,v2);
}

main(void){
	scanf("%lld",&n);
	FOR{
		scanf("%lld %lld",&p[i].fi,&p[i].se);
	}
	sort(p+1,p+n+1);
	FOR{
		
		//~ cout<<cev<<endl;
	}
	vector<int> v3[4];
	v3[0].clear();
	v3[1].clear();
	v3[2].clear();
	f(1,v3);
	printf("%lld\n",add(cev,mod-1));
	return 0;
}

Compilation message (stderr)

port_facility.cpp:63:10: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
 main(void){
          ^
port_facility.cpp: In function 'int main()':
port_facility.cpp:64:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld",&n);
  ~~~~~^~~~~~~~~~~
port_facility.cpp:66:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld %lld",&p[i].fi,&p[i].se);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 12
• Subtask 3: 0 / 56
• Subtask 4: 0 / 22