Submission #923605

#	Time	Username	Problem	Language	Result	Execution time	Memory
923605		parlimoos	Jump (BOI06_jump)	C++17	90 / 100	19 ms	1376 KiB

jump

//Be Name KHODA
#pragma GCC optimize("Ofast")
#include<bits/stdc++.h>
#include<array>
using namespace std;

typedef long long ll;
typedef long double ld;
#define pb push_back
#define pp pop_back
#define lb lower_bound
#define ub upper_bound
#define cl clear
#define bg begin
#define arr(x) array<unsigned long long , x>
#define endl '\n'

const unsigned long long INF = (1ll * 1e10);

int n;
int mat[100][100];
arr(11) dp[100][100];
arr(11) zr = {0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0};

arr(11) Sum(arr(11) &a , arr(11) &b){
	arr(11) res = zr;
	for(int i = 0 ; i < 11 ; i++) res[i] = a[i] + b[i];
	for(int i = 0 ; i < 10 ; i++){
		unsigned long long d = res[i] % INF;
		res[i + 1] += (res[i] / INF);
		res[i] = d;
	}
	return res;
}
void f(int i , int j){
	if(dp[i][j] != zr) return;
	
	int jmp = mat[i][j];
	if(jmp == 0) return;
	if(i + jmp >= n and j + jmp >= n) return;
	if(i + jmp >= n) f(i , j + jmp) , dp[i][j] = dp[i][j + jmp];
	else if(j + jmp >= n) f(i + jmp , j) , dp[i][j] = dp[i + jmp][j];
	else{
		f(i + jmp , j) , f(i , j + jmp);
		dp[i][j] = Sum(dp[i + jmp][j] , dp[i][j + jmp]);
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	
	cin >> n;
	for(int i = 0 ; i < n ; i++){
		for(int j = 0 ; j < n ; j++){
			cin >> mat[i][j];
		}
	}
	fill(&dp[0][0] , &dp[99][100] , zr);
	dp[n - 1][n - 1][0] = 1;
	f(0 , 0);
	int inx = 10;
	while(inx >= 0 and dp[0][0][inx] == 0) inx--;
	for(int i = max(0 , inx) ; i >= 0 ; i--) cout << dp[0][0][i];
}

• Subtask 1: 90 / 100