Submission #1088975

#	Time	Username	Problem	Language	Result	Execution time	Memory
1088975		StefanSebez	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	2 ms	1116 KiB

dungeons

#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define pb push_back
#define ll long long
#define ld long double
const int N=4e5+50,lg=30;
ll n,s[N],p[N],w[N],l[N],maks;
ll par[N][lg+1],par1[N][lg+1],sum[N][lg+1],sum1[N][lg+1];
void init(int n1, std::vector<int> s1, std::vector<int> p1, std::vector<int> w1, std::vector<int> l1) {
	n=n1;
	for(int i=0;i<n;i++){s[i]=s1[i],p[i]=p1[i],w[i]=w1[i],l[i]=l1[i];maks=max(maks,s[i]);}
	for(int i=0;i<n;i++){
		par[i][0]=w[i];
		par1[i][0]=l[i];
		sum[i][0]=p[i];
	}
	for(int i=0;i<=lg;i++) par[n][i]=par1[n][i]=n;
	for(int j=1;j<=lg;j++) for(int i=0;i<n;i++){par[i][j]=par[par[i][j-1]][j-1];par1[i][j]=par1[par1[i][j-1]][j-1];sum[i][j]=sum[i][j-1]+sum[par1[i][j-1]][j-1];}
	//for(int i=0;i<=n;i++) for(int j=0;j<=5;j++) printf("%i %i: %lld %lld %lld\n",i,j,par[i][j],par1[i][j],sum[i][j]);
	return;
}

long long simulate(int x, int z) {
	ll Z=z;
	while(x<n && Z<maks){
		if(Z>=s[x]){
			Z+=s[x];
			x=w[x];
		}
		else{
			Z+=p[x];
			x=l[x];
		}
		//printf("*%i %lld\n",x,Z);
	}
	for(int i=lg;i>=0;i--){
		if(Z+sum[x][i]<s[0] && par1[x][i]<n){
			Z+=sum[x][i];
			x=par1[x][i];
		}
	}
	if(Z<s[0]){
		Z+=p[x];
		x=l[x];
	}
	for(int i=lg;i>=0;i--){
		if(par[x][i]<n){
			ll val=(ll)1<<i;
			Z+=sum[x][i];
			x=par[x][i];
		}
	}
	if(x<n){
		Z+=s[x];
		x=w[x];
	}
	return Z;
}

Compilation message (stderr)

dungeons.cpp: In function 'long long int simulate(int, int)':
dungeons.cpp:51:7: warning: unused variable 'val' [-Wunused-variable]
   51 |    ll val=(ll)1<<i;
      |       ^~~

• Subtask 1: 0 / 11
• Subtask 2: 0 / 26
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 27
• Subtask 6: 0 / 11