Submission #1284282

#	Time	Username	Problem	Language	Result	Execution time	Memory
1284282		muhammad-mutahir	The Ties That Guide Us (CEOI23_incursion)	C++20	Compilation error	0 ms	0 KiB

incursion

#include <vector>
#include "incursion.h"
#include <cstdio>
using namespace std;
#include <bits/stdc++.h>

vector<int> mark(vector<pair<int, int>> F, int safe) {
  int N = F.size()+1;
  vector<int>deg(N+1,0);
  vector<vector<int>>adj(N+1);
  for(auto i:F){
  	adj[i.first].push_back(i.second);
  	adj[i.second].push_back(i.first);  	
  	deg[i.first]++;
  	deg[i.second]++;
  }
  queue<int>Q;
  Q.push(safe);
  vector<int>vis(N+1,0);
  vis[safe] = 2;
  int c = 2;
  while(Q.size()){
  	int x = Q.front();
  	Q.pop();
  	for(int i:adj[x]){
  		if(!vis[i]){
  			Q.push(i);
  			vis[i] = c;
  		}
  	}
  	c--;
  	c+=3;
  	c%=3;
  }
  // print(vis);
    
  return vis;
}

void locate(vector<pair<int, int>> F, int curr, int t) {
 int N = F.size()+1;
  vector<int>deg(N+1,0);
  vector<vector<int>>adj(N+1);
  for(auto i:F){
  	adj[i.first].push_back(i.second);
  	adj[i.second].push_back(i.first);  	
  	deg[i.first]++;
  	deg[i.second]++;
  }
  
  queue<int>Q;
  vector<int>viss(N+1,0);

  int c1 = visit(adj[curr][0]);
  int c = visit(curr);
  int c2 = visit(adj[curr][2]);
  int p = visit(curr);
  int cr
  if(c1 == 0 and c == 1 and c2 == 2){
  	Q.push(c2);
  	cr = visit(c2);
  	viss[c] = 1;
  	viss[c2] = 1;
  }
  else if(c1 == 1 and c == 2 and c2 == 0){
  	cr = visit(c2);
  	Q.push(c2);
  	viss[c] = 1;
  	viss[c2] = 1;
  }
  else if(c1 == 2 and c == 0 and c2 == 1){
  	cr = visit(c2);
  	Q.push(c2);
  	viss[c] = 1;
  	viss[c2] = 1;
  }
  
  else if(c1 == 2 and c == 1 and c2 == 0){
  	cr = visit(c1);
  	Q.push(c1);
  	viss[c] = 1;
  	viss[c1] = 1;
  }
  else if(c1 == 1 and c == 0 and c2 == 2){
  	cr = visit(c1);
  	Q.push(c1);
  	viss[c] = 1;
  	viss[c1] = 1;
  }
  else if(c1 == 0 and c == 2 and c2 == 1){
  	cr = visit(c1);
  	Q.push(c1);
  	viss[c] = 1;
  	viss[c1] = 1;
  }
  int nt;
  while(Q.size()){
  	int x = Q.front();
  	Q.pop();
  	for(int i:adj[x]){
  		if(!viss[i]){
  			Q.push(i);
  			viss[i] = 1;
  			nt = visit(i);
  			if(nt == 2 and cr == 2 and pv == 2){
  				int res = visit(x);
  				return;
  			}
  			pv = cr;
  			cr = nt;
  		}
  	}

  }
}

// int main(){
	// vector<pair<int,int>>qur = {{1,2},{2,3},{3,4}};	
	// vector<int>ans = mark(qur,3);
	// for(auto i:ans){
		// cout<<i<<" ";
	// }
	// cout<<endl;
// }

Compilation message (stderr)

incursion.cpp: In function 'void locate(std::vector<std::pair<int, int> >, int, int)':
incursion.cpp:59:3: error: expected initializer before 'if'
   59 |   if(c1 == 0 and c == 1 and c2 == 2){
      |   ^~
incursion.cpp:65:3: error: 'else' without a previous 'if'
   65 |   else if(c1 == 1 and c == 2 and c2 == 0){
      |   ^~~~
incursion.cpp:66:9: error: 'cr' was not declared in this scope; did you mean 'c2'?
   66 |         cr = visit(c2);
      |         ^~
      |         c2
incursion.cpp:72:9: error: 'cr' was not declared in this scope; did you mean 'c2'?
   72 |         cr = visit(c2);
      |         ^~
      |         c2
incursion.cpp:79:9: error: 'cr' was not declared in this scope; did you mean 'c2'?
   79 |         cr = visit(c1);
      |         ^~
      |         c2
incursion.cpp:85:9: error: 'cr' was not declared in this scope; did you mean 'c2'?
   85 |         cr = visit(c1);
      |         ^~
      |         c2
incursion.cpp:91:9: error: 'cr' was not declared in this scope; did you mean 'c2'?
   91 |         cr = visit(c1);
      |         ^~
      |         c2
incursion.cpp:105:40: error: 'cr' was not declared in this scope; did you mean 'c2'?
  105 |                         if(nt == 2 and cr == 2 and pv == 2){
      |                                        ^~
      |                                        c2
incursion.cpp:105:52: error: 'pv' was not declared in this scope; did you mean 'p'?
  105 |                         if(nt == 2 and cr == 2 and pv == 2){
      |                                                    ^~
      |                                                    p
incursion.cpp:109:25: error: 'pv' was not declared in this scope; did you mean 'p'?
  109 |                         pv = cr;
      |                         ^~
      |                         p
incursion.cpp:109:30: error: 'cr' was not declared in this scope; did you mean 'c2'?
  109 |                         pv = cr;
      |                              ^~
      |                              c2