Submission #657492

#	Time	Username	Problem	Language	Result	Execution time	Memory
657492		sentheta	Catfish Farm (IOI22_fish)	C++17	6 / 100	90 ms	17408 KiB

fish

#include "fish.h"
// author : sentheta aka vanwij
#include<iostream>
#include<iomanip>
#include<algorithm>
#include<cassert>
#include<random>
#include<chrono>
#include<cmath>
#include<string>
#include<vector>
#include<bitset>
#include<queue>
#include<stack>
#include<map>
#include<set>
using namespace std;

#define Int long long
#define V vector
#define pii pair<int,int>
#define ff first
#define ss second

#define rand() (uniform_int_distribution<int>(0,1<<30)(rng))
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

#define pow2(x) (1LL<<(x))
#define msb(x) (63-__builtin_clzll(x))
#define bitcnt(x) (__builtin_popcountll(x))

#define nl '\n'
#define _ << ' ' <<
#define all(x) (x).begin(), (x).end()
#define rep(i,a,b) for(int i = (int)(a); i < (int)(b); i++)
#define dbg(x) if(1) cout << "?" << #x << " : " << (x) << endl << flush;

const Int N = 2e5+5;

Int n, m;
V<Int> x, y, w;

Int zro[N], one[N];

Int max_weights(int _n,int _m,V<int> _x,V<int> _y,V<int> _w){
	n = _n; m = _m;
	x = V<Int>(all(_x)); y = V<Int>(all(_y)); w = V<Int>(all(_w));


	rep(i,0,m){
		if(x[i]==0) zro[y[i]] += w[i];
		else one[y[i]] += w[i];
	}
	rep(i,1,N){
		zro[i] += zro[i-1];
		one[i] += one[i-1];
	}

	if(n <= 2){
		return max(zro[n], one[n]);
	}

	Int ans = one[n];
	rep(i,0,n){
		ans = max(ans, zro[i] + one[n]-one[i]);
	}
	return ans;


	return 0;
}

• Subtask 1: 0 / 3
• Subtask 2: 6 / 6
• Subtask 3: 0 / 9
• Subtask 4: 0 / 14
• Subtask 5: 0 / 21
• Subtask 6: 0 / 17
• Subtask 7: 0 / 14
• Subtask 8: 0 / 16