Submission #1084783

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1084783	2024-09-07T02:05:23 Z	Math4Life2020	Magic Show (APIO24_show)	C++17	Compilation error	0 ms	0 KB

Alice

#include <bits/stdc++.h>
#include "Alice.h"
using namespace std;
using ll = long long; using pii = pair<ll,ll>;
const ll SEED = 82014384209183;
const ll N = 5000;

ll l2(ll x) {
	return (31-__builtin_clz(x));
}

vector<pii> Alice() {
	ll X = setN((int)N); //X<=10^18<2^60
	mt19937 gen(SEED);
	vector<pii> ans; 
	for (ll x=1;x<N;x++) {
		ll y=0;
		ll lx = l2(x);
		for (ll i=0;i<lx;i++) {
			ll bv = gen()%60;
			y += (1LL<<i)*((X>>bv)&1);
		}
		ans.push_back({y+1,x+1});
	}
	return ans;
}

Bob

#include <bits/stdc++.h>
#include "Bob.h"
using namespace std;
using ll = long long; using pii = pair<ll,ll>;
const ll SEED = 82014384209183;
const ll N = 5000;

ll l2(ll x) {
	return (31-__builtin_clz(x));
}

ll Bob(vector<pii> V) {
	ll ans = 0;
	ll read[N];
	for (ll i=0;i<N;i++) {
		read[i]=-1;
	}
	for (pii p0: V) {
		ll y = p0.first; ll x = p0.second;
		x--; y--;
		read[x]=y;
	}
	for (ll x=1;x<N;x++) {
		ll RD=read[x];
		ll lx = l2(x);
		for (ll i=0;i<lx;i++) {
			ll bv = gen()%60;
			if (RD!=-1) {
				ans |= (1LL<<bv)*(RD>>i);
			}
		}
	}
	return ans;
}

Compilation message

Alice.cpp:12:13: error: ambiguating new declaration of 'std::vector<std::pair<long long int, long long int> > Alice()'
   12 | vector<pii> Alice() {
      |             ^~~~~
In file included from Alice.cpp:2:
Alice.h:3:33: note: old declaration 'std::vector<std::pair<int, int> > Alice()'
    3 | std::vector<std::pair<int,int>> Alice();
      |                                 ^~~~~

Bob.cpp: In function 'll Bob(std::vector<std::pair<long long int, long long int> >)':
Bob.cpp:27:12: error: 'gen' was not declared in this scope
   27 |    ll bv = gen()%60;
      |            ^~~