답안 #426573

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
426573	2021-06-14T06:58:39 Z	amunduzbaev	길고양이 (JOI20_stray)	C++14	컴파일 오류	0 ms	0 KB

Anthony

/* made by amunduzbaev */
 
#include "bits/stdc++.h"
 
using namespace std;
 
//~ #include <ext/pb_ds/assoc_container.hpp>
//~ #include <ext/pb_ds/tree_policy.hpp>
//~ using namespace __gnu_pbds;
//~ template<class T> using oset = tree<T, 
//~ null_type, less_equal<T>, rb_tree_tag, 
//~ tree_order_statistics_node_update>;
 
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
#define ub upper_bound
#define lb lower_bound
#define sz(x) (int)x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(),x.rend()
#define NeedForSpeed ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define vv vector
#define mem(arr, v) memset(arr, v, sizeof arr)
#define int long long
#define degub(x) cout<<#x<<" : "<<x<<"\n"
#define GG cout<<"here"<<endl;
 
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii; 
typedef vector<int> vii;
typedef vector<pii> vpii;
template<class T> bool umin(T& a, const T& b) { return a > b ? a = b, true : false; }
template<class T> bool umax(T& a, const T& b) { return a < b ? a = b, true : false; }
template<int sz> using tut = array<int, sz>;
void usaco(string s) { freopen((s+".in").c_str(),"r",stdin);  
	freopen((s+".out").c_str(),"w",stdout); NeedForSpeed }
 
const int N = 2e5+5;
const int mod = 1e9+7;
const ll inf = 1e18;
const ld Pi = acos(-1);
 
#define MULTI 0
int n, m, k, s, t, q, ans, res, a[N];
int d[N], used[N];
vii edges[N];

void solve(int t_case){
	cin>>n>>m>>k;
	for(int i=0;i<m;i++){
		int a, b; cin>>a>>b, edges[b].pb(a);
	}
	
	int u;
	cin>>u>>k;
	for(int i=0, x;i<k;i++) cin>>x, used[x] = 1;
	for(int i=1;i<=n;i++) d[i] = -inf;
	d[u] = 0; res = -inf;
	for(int i=u;i>0;i--){
		if(d[i] == -inf) continue;
		for(auto x : edges[i]) umax(d[x], d[i] + 1);
	} 
	
	for(int i=1;i<=n;i++) if(!used[i]) umax(res, d[i]);
	if(res == -inf) cout<<-1<<"\n";
	else cout<<res<<"\n";
}

/*

12 17 10
1 2
2 3
3 4
1 5
2 6
3 7
4 8
5 6
6 7
7 8
5 9
6 10
7 11
8 12
9 10
10 11
11 12

6 3 1 7 12
3 7 1 2 3 4 5 6 7
11 3 1 3 5
9 2 1 9
8 4 1 2 3 4
1 1 1
12 0
10 3 1 6 10
11 8 2 3 5 6 7 9 10 11
8 7 2 3 4 5 6 7 8

*/

signed main(){
	NeedForSpeed
	if(MULTI){
		int t; cin>>t;
		for(int t_case = 1; t_case <= t; t_case++) solve(t_case);
	} else solve(1);
	return 0;
}

Catherine

Compilation message

Anthony.cpp: In function 'void usaco(std::string)':
Anthony.cpp:38:31: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   38 | void usaco(string s) { freopen((s+".in").c_str(),"r",stdin);
      |                        ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Anthony.cpp:39:9: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |  freopen((s+".out").c_str(),"w",stdout); NeedForSpeed }
      |  ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/bin/ld: /tmp/ccwNSC56.o: in function `main':
grader_anthony.cpp:(.text.startup+0x0): multiple definition of `main'; /tmp/cciHl8u7.o:Anthony.cpp:(.text.startup+0x0): first defined here
/usr/bin/ld: /tmp/ccwNSC56.o: in function `main':
grader_anthony.cpp:(.text.startup+0x191): undefined reference to `Mark(int, int, int, int, std::vector<int, std::allocator<int> >, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status

/usr/bin/ld: /tmp/ccM5BT5S.o: in function `main':
grader_catherine.cpp:(.text.startup+0x41c): undefined reference to `Init(int, int)'
/usr/bin/ld: grader_catherine.cpp:(.text.startup+0xcfa): undefined reference to `Move(std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status