Submission #1008037

#	Time	Username	Problem	Language	Result	Execution time	Memory
1008037		Math4Life2020	Magic Show (APIO24_show)	C++17	Compilation error	0 ms	0 KiB

Alice

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
#include <Alice.h>
using namespace std;
using ll = long long;
using ld = long double;
using pii = pair<ll,ll>;

ld seed = 0.1434;
ld getseed() {
	seed = 3.67*seed*(1.0-seed);
	return seed;
}

ll getrng(ll x) { //random integer in [0,x-1]
	return (((ll) round(1000000000000*getseed()))%x);
}

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

vector<pair<int,int>> Alice() {
	ll N = 5000;
	ll X = setN((int) N);
	vector<pair<int,int>> vout;
	vector<bool> xv;
	ll E = 60;
	for (ll e=59;e>=0;e--) {
		xv.push_back((X>>e)%2);
	}
	for (ll n=1;n<N;n++) {
		ll D = l2(n)-1;
		ll val = 0;
		for (ll d=0;d<D;d++) {
			ll e = getrng(E);
			val += xv[e]*(1LL<<d);
		}
		vout.push_back({val+1,n+1});
	}
	return vout;
}

long long Bob(vector<pair<int,int>> V) {
	ll N = 5000;
	ll vals[N];
	for (ll i=0;i<N;i++) {
		vals[i]=-1;
	}
	for (pii p0: V) {
		vals[p0.second-1]=p0.first-1;
	}
	vector<ll> xv;
	ll E = 60;
	for (ll e=59;e>=0;e--) {
		xv.push_back(-1);
	}
	for (ll n=1;n<N;n++) {
		ll D = l2(n)-1;
		ll val = 0;
		for (ll d=0;d<D;d++) {
			ll e = getrng(E);
			//val += xv[e]*(1LL<<d);
			if (vals[n]!=-1) {
				xv[e]=vals[n]>>d;
			}
		}
	}
	ll X = 0;
	for (ll e=0;e<E;e++) {
		X += xv[e]*(1LL<<(E-1-e));
	}
	return X;
}

Bob

// Source: https://usaco.guide/general/io

#include <bits/stdc++.h>
#include <Bob.h>
using namespace std;
using ll = long long;
using ld = long double;
using pii = pair<ll,ll>;

ld seed = 0.1434;
ld getseed() {
	seed = 3.67*seed*(1.0-seed);
	return seed;
}

ll getrng(ll x) { //random integer in [0,x-1]
	return (((ll) round(1000000000000*getseed()))%x);
}

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

vector<pair<int,int>> Alice() {
	ll N = 5000;
	ll X = setN((int) N);
	vector<pair<int,int>> vout;
	vector<bool> xv;
	ll E = 60;
	for (ll e=59;e>=0;e--) {
		xv.push_back((X>>e)%2);
	}
	for (ll n=1;n<N;n++) {
		ll D = l2(n)-1;
		ll val = 0;
		for (ll d=0;d<D;d++) {
			ll e = getrng(E);
			val += xv[e]*(1LL<<d);
		}
		vout.push_back({val+1,n+1});
	}
	return vout;
}

long long Bob(vector<pair<int,int>> V) {
	ll N = 5000;
	ll vals[N];
	for (ll i=0;i<N;i++) {
		vals[i]=-1;
	}
	for (pii p0: V) {
		vals[p0.second-1]=p0.first-1;
	}
	vector<ll> xv;
	ll E = 60;
	for (ll e=59;e>=0;e--) {
		xv.push_back(-1);
	}
	for (ll n=1;n<N;n++) {
		ll D = l2(n)-1;
		ll val = 0;
		for (ll d=0;d<D;d++) {
			ll e = getrng(E);
			//val += xv[e]*(1LL<<d);
			if (vals[n]!=-1) {
				xv[e]=vals[n]>>d;
			}
		}
	}
	ll X = 0;
	for (ll e=0;e<E;e++) {
		X += xv[e]*(1LL<<(E-1-e));
	}
	return X;
}

Compilation message (stderr)

Alice.cpp: In function 'long long int Bob(std::vector<std::pair<int, int> >)':
Alice.cpp:61:6: warning: unused variable 'val' [-Wunused-variable]
   61 |   ll val = 0;
      |      ^~~

Bob.cpp: In function 'std::vector<std::pair<int, int> > Alice()':
Bob.cpp:26:9: error: 'setN' was not declared in this scope
   26 |  ll X = setN((int) N);
      |         ^~~~
Bob.cpp: In function 'long long int Bob(std::vector<std::pair<int, int> >)':
Bob.cpp:61:6: warning: unused variable 'val' [-Wunused-variable]
   61 |   ll val = 0;
      |      ^~~