Submission #681266

# Submission time Handle Problem Language Result Execution time Memory
681266 2023-01-12T15:50:45 Z vjudge1 Sailing Race (CEOI12_race) C++17
Compilation error
0 ms 0 KB
#include <bits/stdc++.h>
 
#define X first
#define Y second
#define pb push_back
 
using namespace std;
 
typedef pair<int, int> pii;
typedef long long ll;
 
const int N = 510;
 
int n, dp[N][N][2], rdp[N][N][2];
 
vector<int> g[N];
 
int inside(int l, int r, int x){
	if(l == x || x == r) return -1;
	if(l < r) return l < x && x < r;
	return l < x || x < r;
}
 
int solve(int l, int r, bool f){
	int v = !f * l + f * r;
	if(dp[l][r][f] != -1) return dp[l][r][f];
	dp[l][r][f] = 1;
	for(int u  : g[v]){
		if(inside(l, r, u) == 1) dp[l][r][f] = max(dp[l][r][f], max(solve(l, u, 1), solve(u, r, 0)) + 1);
	}
	return dp[l][r][f];
}
 
int rec(int l, int r, bool f){
	int v = !f * l + f * r;
	if(rdp[l][r][f] != -1) return rdp[l][r][f];
	rdp[l][r][f] = 1;
	for(int u  : g[v]){
		int nl = v, nr = u;
		if(f){
			nl = u;
			nr = v;
		}
		if(inside(l, r, u) == 1) rdp[l][r][f] = max(rdp[l][r][f], rec(nl, nr, f) + 1);
	}
	for(int u : g[v]){
		if(inside(l, r, u) == 0) rdp[l][r][f] = max(rdp[l][r][f], rec())
	}
	return rdp[l][r][f];
}
 
int main(){
	memset(dp, -1, sizeof(dp));
 
	int k;
	scanf("%d%d", &n, &k);
	for(int i = 1; i <= n; i++){
		while(1){
			int x;
			scanf("%d", &x);
			if(!x) break;
			g[i].pb(x);
		}
	}
 
	int ans = 1;
	int ind = 1;
	for(int v = 1; v <= n; v++){
		for(int u : g[v]) 
			if(ans < max(solve(v, u, 1), solve(u, v, 0)) + 1){
				ans = max(solve(v, u, 1), solve(u, v, 0)) + 1;
				ind = v;
			}
	}
 
	/*printf("%d\n", ans);
 
	if(k){
		for(int v = 1; v <= n; v++) 
			for(int u : g[v]) 
				if(ans < max(rec(v, u, 1), rec(u, v, 0)) + 1){
					ans = max(rec(v, u, 1), rec(u, v, 0)) + 1;
					ind = v;
				}
	}*/
 
	printf("%d\n%d\n", ans, ind);
	return 0;
}

Compilation message

race.cpp:2:1: error: extended character   is not valid in an identifier
    2 |  
      | ^
race.cpp:6:1: error: extended character   is not valid in an identifier
    6 |  
      | ^
race.cpp:8:1: error: extended character   is not valid in an identifier
    8 |  
      | ^
race.cpp:11:1: error: extended character   is not valid in an identifier
   11 |  
      | ^
race.cpp:13:1: error: extended character   is not valid in an identifier
   13 |  
      | ^
race.cpp:15:1: error: extended character   is not valid in an identifier
   15 |  
      | ^
race.cpp:17:1: error: extended character   is not valid in an identifier
   17 |  
      | ^
race.cpp:23:1: error: extended character   is not valid in an identifier
   23 |  
      | ^
race.cpp:33:1: error: extended character   is not valid in an identifier
   33 |  
      | ^
race.cpp:51:1: error: extended character   is not valid in an identifier
   51 |  
      | ^
race.cpp:54:1: error: extended character   is not valid in an identifier
   54 |  
      | ^
race.cpp:65:1: error: extended character   is not valid in an identifier
   65 |  
      | ^
race.cpp:75:1: error: extended character   is not valid in an identifier
   75 |  
      | ^
race.cpp:86:1: error: extended character   is not valid in an identifier
   86 |  
      | ^
race.cpp:2:1: error: '\U000000a0' does not name a type
    2 |  
      | ^
race.cpp:8:1: error: '\U000000a0' does not name a type
    8 |  
      | ^
race.cpp:11:1: error: '\U000000a0' does not name a type
   11 |  
      | ^
race.cpp:13:1: error: '\U000000a0' does not name a type
   13 |  
      | ^
race.cpp:15:1: error: '\U000000a0' does not name a type
   15 |  
      | ^
race.cpp:17:1: error: '\U000000a0' does not name a type
   17 |  
      | ^
race.cpp:23:1: error: '\U000000a0' does not name a type
   23 |  
      | ^
race.cpp:33:1: error: '\U000000a0' does not name a type
   33 |  
      | ^
race.cpp:51:1: error: '\U000000a0' does not name a type
   51 |  
      | ^