Submission #1205428

#	Time	Username	Problem	Language	Result	Execution time	Memory
1205428		Andrey	Sphinx's Riddle (IOI24_sphinx)	C++20	Compilation error	0 ms	0 KiB

sphinx

#include "sphinx.h"
#include<bits/stdc++.h>
using namespace std;

int n;
vector<int> haha[300];
vector<int> no[300];
vector<int> bruh(300);
vector<int> col[300];
vector<int> dep[300];
vector<int> odd(0);
vector<int> even(0);

void dfs(int a) {
    bruh[a] = -1;
    for(int v: haha[a]) {
        if(bruh[v] != -1) {
            dfs(v);
        }
    }
}

int dude(vector<int> wut) {
    vector<int> yo(n,n);
    for(int i = 0; i < n; i++) {
        bruh[i] = 0;
    }
    for(int v: wut) {
        yo[v] = -1;
        bruh[v] = -1;
    }
    int ans = perform_experiment(yo);
    for(int i = 0; i < n; i++) {
        if(bruh[i] != -1) {
            dfs(i);
            ans--;
        }
    }
    return ans;
}

void dfs2(int a, int c) {
    bruh[a] = -1;
    for(int v: no[a]) {
        if(bruh[v] == c) {
            dfs(v,c);
        }
    }
}

void calc(int p, int c, vector<int> wut) {
    vector<int> wow(n,n);
    if(p == 0) {
        for(int v: odd) {
            wow[v] = c;
        }
    }
    else {
        for(int v: even) {
            wow[v] = c;
        }
    }
    int br = wut.size();
    for(int i = 0; i < n; i++) {
        wow[i] = bruh[i];
    }
    for(int i = 0; i < n; i++) {
        if(bruh[i] != -1) {
            br++;
            dfs(i,bruh[i]);
        }
    }
    vector<int> ans(n);
    for(int i = 0; i < n; i++) {
        for(int v: col[i]) {
            ans[v] = wow[i];
        }
    }
    if(perform_experiment(ans) < br) {
        return true;
    }
    else {
        return false;
    }
}

std::vector<int> find_colours(int N, std::vector<int> x, std::vector<int> y) {
    n = N;
    for(int i = 0; i < x.size(); i++) {
        haha[x[i]].push_back(y[i]);
        haha[y[i]].push_back(x[i]);
    }
    vector<int> ans(n);
    for(int i = 1; i < n; i++) {
        ans[i] = i;
        vector<int> wut(0);
        set<int> idk;
        for(int j = 0; j <= i; j++) {
            wut.push_back(j);
            if(j < i) {
                idk.insert(ans[j]);
            }
        }
        int c = (int)idk.size()-dude(wut)+1;
        for(int j = 0; j < c; j++) {
            int l = 0,r = i-1;
            while(l < r) {
                int mid = (l+r)/2;
                wut.clear();
                idk.clear();
                for(int k = 0; k < i; k++) {
                    if(ans[k] >= l && ans[k] <= mid) {
                        wut.push_back(k);
                        idk.insert(ans[k]);
                    }
                }
                wut.push_back(i);
                if(dude(wut) <= idk.size()) {
                    r = mid;
                }
                else {
                    l = mid+1;
                }
            }
            int a = l;
            for(int k = 0; k < i; k++) {
                if(ans[k] == a) {
                    ans[k] = i;
                }
            }
        }
    }
    for(int i = 0; i < n; i++) {
        col[ans[i]].push_back(i);
    }
    for(int i = 0; i < x.size(); i++) {
        no[ans[x[i]]].push_back(ans[y[i]]);
        no[ans[y[i]]].push_back(ans[x[i]]);
    }
    vector<int> dep2(n,-1);
    dep2[n-1] = 0;
    dep[0].push_back(0);
    for(int i = 0; i < n; i++) {
        for(int v: dep[i]) {
            for(int u: no[v]) {
                if(dep2[u] == -1) {
                    dep2[u] = i+1;
                    dep[i+1].push_back(u);
                }
            }
        }
    }
    for(int i = 0; i < n; i++) {
        for(int v: dep[i]) {
            if(i%2) {
                even.push_back(i);
            }
            else {
                odd.push_back(i);
            }
        }
    }
    return ans;
}

Compilation message (stderr)

sphinx.cpp: In function 'void dfs2(int, int)':
sphinx.cpp:46:16: error: too many arguments to function 'void dfs(int)'
   46 |             dfs(v,c);
      |             ~~~^~~~~
sphinx.cpp:14:6: note: declared here
   14 | void dfs(int a) {
      |      ^~~
sphinx.cpp: In function 'void calc(int, int, std::vector<int>)':
sphinx.cpp:70:16: error: too many arguments to function 'void dfs(int)'
   70 |             dfs(i,bruh[i]);
      |             ~~~^~~~~~~~~~~
sphinx.cpp:14:6: note: declared here
   14 | void dfs(int a) {
      |      ^~~
sphinx.cpp:80:16: error: return-statement with a value, in function returning 'void' [-fpermissive]
   80 |         return true;
      |                ^~~~
sphinx.cpp:83:16: error: return-statement with a value, in function returning 'void' [-fpermissive]
   83 |         return false;
      |                ^~~~~