| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1293069 | yf_yusuf | Koala Game (APIO17_koala) | C++20 | 0 ms | 0 KiB |
//```// YF YUSUF
#include <bits/stdc++.h>
using namespace std;
#ifdef YF_CHECK
bool LOCAL = 1;
#else
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("O3")
bool LOCAL = 0;
#endif
using ll = long long;
using ld = long double;
using vll = vector <ll>;
using mll = map <ll,ll>;
using pll = pair <ll,ll>;
using vvl = vector <vll>;
using vpll = vector <pll>;
template<class T>T MIN(T&a,T b){a=min(a,b);return a;}
template<class T>T MAX(T&a,T b){a=max(a,b);return a;}
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define sgr v+v+1,(tl+tr)/2+1,tr
#define sgl v+v,tl,(tl+tr)/2
#define pb push_back
#define ins insert
#define S second
#define F first
mt19937_64 MT(time(0));
ll BP(ll a,ll b,ll mod=1e9+7){
if(b==0)return 1;
ll q=BP(a,b/2,mod);
return ((q*q)%mod*(b%2?a:1ll))%mod;
}
ll f(ll x){return x*(x+1)/2;}
ll dup(ll a,ll b){return (a+b-1)/b;}
ll lcm(ll a,ll b){return a/__gcd(a,b)*b;}
ll invf(ll x){return (-1+sqrt(1+8*x))/2;}
ll lg(ll x){return (x ? 63 - __builtin_clzll(x) : -1);}
const ll mod=998244353;
const ll INF=1e18;
const ll inf=1e9+7;
#include "koala.h"
#include <stdio.h>
#include <stdlib.h>
static int N, W;
static int P[105];
static int maxQueries = 3200;
static int numQueries;
static void runGame(int F);
static void grader();
int B[100], R[100];
int minValue(int N, int W) {
B[0] = 1;
playRound(B, R);
int j;
for(int i=0;i<N;i++){
if(!R[i])
j = i;
}
return j;
}
int maxValue(int N, int W) {
vll v;
for(int i=0;i<N;i++)v.pb(i);
while(v.size() > 1){
ll x = (W / v.size());
fill(B, B+N, 0);
for(auto i : v)B[i] = x;
playRound(B, R);
v.clear();
for(int i=0;i<N;i++)
if(R[i] > x)v.pb(i);
}
return v[0];
}
int greaterValue(int N, int W) {
ll l = 1, r = 9;
while(l!=r){
ll m=(l+r)>>1;
B[0] = B[1] = m;
playRound(B, R);
if (R[0] > m && R[1] > m) l = m + 1;
else if (R[0] <= m && R[1] <= m) r = m - 1;
else return (R[0] < R[1]);
}
B[0] = B[1] = l;
playRound(B, R);
return (R[0] < R[1]);
}
bool better(int i, int j, int N, int W){
fill(B, B+N, 0);
B[i] = B[j] = W / 2;
playRound(B, R);
return (R[j] > W);
}
vll dac(vll v, int N, int W){
if(v.size() == 1)return v;
vll a, b;
int md = (v.size() + 1)/2;
for(int i=0 ;i<md ;i++)a.pb(v[i]);
for(int i=md;i<v.size();i++)b.pb(v[i]);
a = dac(a, N, W);
b = dac(b, N, W);
vll c;
int l=0,r=0;
while(l < a.size() && r < b.size()){
if(better(a[l], b[r], N, W))c.pb(a[l++]);
else c.pb(b[r++]);
}
while(l < a.size())c.pb(a[l++]);
while(r < b.size())b.pb(a[r++]);
return c;
}
void allValues(int N, int W, int *P) {
vll v;
for(int i=0;i<N;i++)v.pb(i);
v = dac(v, N, W);
// for(int i=0;i<N;i++)cout<<v[i]<<" ";cout<<" v\n";
for(int i=0;i<N;i++)P[v[i]] = i+1;
return;
}
void playRound(int *B, int *R) {
int i, j;
int S = 0;
for (i=0;i<N;++i) {
if ( !(B[i] >= 0 && B[i] <= W) ) {
printf("Invalid query 1.\n");
exit(0);
}
S += B[i];
}
if (S > W) {
printf("Invalid query 2.\n");
exit(0);
}
numQueries++;
if (numQueries > maxQueries) {
printf("Too many queries.\n");
exit(0);
}
int cache[2][205];
int num[2][205];
char taken[105][205];
for (i=0;i<205;++i) {
cache[1][i] = 0;
num[1][i] = 0;
}
for (i=0;i<N;++i) {
int v = B[i]+1;
int ii = i&1;
int o = ii^1;
for (j=0;j<=W;++j) {
cache[ii][j] = cache[o][j];
num[ii][j] = num[o][j];
taken[i][j] = 0;
}
for (j=W;j>=v;--j) {
int h = cache[o][j-v] + P[i];
int hn = num[o][j-v] + 1;
if (h > cache[ii][j] || (h == cache[ii][j] && hn > num[ii][j])) {
cache[ii][j] = h;
num[ii][j] = hn;
taken[i][j] = 1;
} else {
taken[i][j] = 0;
}
}
}
int cur = W;
for (i=N-1;i>=0;--i) {
R[i] = taken[i][cur] ? (B[i] + 1) : 0;
cur -= R[i];
}
}
static void runGame(int F) {
int i;
scanf("%d %d",&N,&W);
for (i=0;i<N;++i) {
scanf("%d",&P[i]);
}
numQueries = 0;
if (F == 1) {
printf("%d\n", minValue(N, W));
} else if (F == 2) {
printf("%d\n", maxValue(N, W));
} else if (F == 3) {
printf("%d\n", greaterValue(N, W));
} else if (F == 4) {
int userP[105];
allValues(N, W, userP);
for (i=0;i<N;i++)
printf("%d ",userP[i]);
printf("\n");
}
printf("Made %d calls to playRound.\n", numQueries);
}
static void grader() {
int F, G;
scanf("%d %d",&F,&G);
for (int i=0;i<G;i++) {
runGame(F);
}
}
const bool TECT=1;
const bool FLSH=1;
const ll SN=1e0 + 7; ll SM[SN];
const ll FN=1e0 + 7; ll FACT[FN], inv[FN], FMOD=inf;
ll PNK(ll n,ll k){return FACT[n] *inv[n-k]%FMOD;}
ll CNK(ll n,ll k){return PNK(n,k)*inv[k ]%FMOD;}
void BEFORE(){
for(ll i=2;i<SN;i++){
if(SM[i])continue;
for(ll j=i;j<SN;j+=i)
MAX(SM[j],i);
}
FACT[0]=inv[0]=1;
for(int i=1;i<FN;i++){
FACT[i]=FACT[i-1]*i%FMOD;
inv[i]=BP(FACT[i],FMOD-2,FMOD);
}
}
signed main(){
// freopen(("input.txt"),"r",stdin);freopen(("output.txt"),"w",stdout);
if(FLSH){
ios_base::sync_with_stdio(0);
cout.setf(ios::fixed);
cout.precision(0);
cout.tie(0);
cin.tie(0);
}
grader();
return 0;
}
// YF YUSUF ```