Submission #1149418

#	Time	Username	Problem	Language	Result	Execution time	Memory
1149418		Webbly	Coin Collecting (JOI19_ho_t4)	C++20	0 / 100	0 ms	328 KiB

joi2019_ho_t4

// Problem: D - Product Sum
// Contest: Virtual Judge - Matrix Multiplication + Convex Hull Trick
// URL: https://vjudge.net/contest/692732#problem/D
// Memory Limit: 256 MB
// Time Limit: 1000 ms
// 
// Powered by CP Editor (https://cpeditor.org)

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//
//                  Solution
//                    Webbly, 27.01.2023
//
//
//                    Arsen ne katai
//
//
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////



#include<bits/stdc++.h>

/**
#include <algorithm>
#include <iostream>
#include <vector>
#include <queue>
#include <cmath>
#include <map>
#include <set>
#include <time.h>
*/
//#pragma GCC optimize("O3")
//#pragma GCC optimize("fast-loops")
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
/**
#pragma GCC optimize("-funsafe-loop-optimizations")
#pragma GCC optimize("-funroll-loops")
#pragma GCC optimize("-fwhole-program")
#pragma GCC optimize("Ofast,no-stack-protector")
#pragma GCC optimize("-fthread-jumps")
#pragma GCC optimize("-falign-functions")
#pragma GCC optimize("-falign-jumps")
#pragma GCC optimize("-falign-loops")
#pragma GCC optimize("-falign-labels")
#pragma GCC optimize("-fcaller-saves")
#pragma GCC optimize("-fcrossjumping")
#pragma GCC optimize("-fcse-follow-jumps")
#pragma GCC optimize("-fcse-skip-blocks")
#pragma GCC optimize("-fdelete-null-pointer-checks")
#pragma GCC optimize("-fdevirtualize")
#pragma GCC optimize("-fexpensive-optimizations")
#pragma GCC optimize("-fgcse")
#pragma GCC optimize("-fgcse-lm")
#pragma GCC optimize("-fhoist-adjacent-loads")
#pragma GCC optimize("-finline-small-functions")
#pragma GCC optimize("-findirect-inlining")
#pragma GCC optimize("-fipa-sra")
#pragma GCC optimize("-foptimize-sibling-calls")
#pragma GCC optimize("-fpartial-inlining")
#pragma GCC optimize("-fpeephole2")
#pragma GCC optimize("-freorder-blocks")
#pragma GCC optimize("-freorder-functions")
#pragma GCC optimize("-frerun-cse-after-loop")
#pragma GCC optimize("-fsched-interblock")
#pragma GCC optimize("-fsched-spec")
#pragma GCC optimize("-fschedule-insns")
#pragma GCC optimize("-fschedule-insns2")
#pragma GCC optimize("-fstrict-aliasing")
#pragma GCC optimize("-fstrict-overflow")
#pragma GCC optimize("-ftree-switch-conversion")
#pragma GCC optimize("-ftree-tail-merge")
#pragma GCC optimize("-ftree-pre")
#pragma GCC optimize("-ftree-vrp")
#pragma GCC target("avx")
*/
#define ll long long
#define kebzaro ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
#define pb push_back
#define mp make_pair
#define all(x) x.begin(),x.end()
#define flush cout.flush()

using namespace std;

const ll mod = (ll)1e9 + 7, mod3 = 998244353, inf = (ll)2e15, P = 31;

void judge(string name){
	if (name.size()){
		freopen((name + ".in").c_str(), "r", stdin);
		freopen((name + "out").c_str(), "w", stdout);
	}
}

ll rnd(){
    ll x = rand();

    return rand() ^ x;
}

ll binpow (ll a, ll b){
    ll ans = 1;
    while(b){
        if (b & 1){
            ans *= a;

            ans %= mod;
        }

        b >>= 1;
        a *= a;

        a %= mod;
    }
    return ans;
}
ll gcd(ll a, ll b){
    return (b ? gcd(b, a % b) : a);
}
ll lcm(ll a, ll b){
    return a / gcd(a, b) * b;
}

struct tr{
    ll four, seven, inc, dec;
};

struct line{
    ll b, c;
};

ll n, m, k, a[100005], b[500005], dp[100005][3];

bool innery(ll x){
	return x <= n && x >= 1;
}

bool innerh(ll y){
	return y <= 2 && y >= 1;
}

void sarsen(){
    cin >> n;
    
    ll ans = 0;
    
    for (ll i = 1; i <= 2 * n; i++){
    	cin >> a[i] >> b[i];
    	
    	if (innerh(b[i]) && innery(a[i])){
    		dp[a[i]][b[i]]++;
    		
    		continue;
    	}
    	
    	if (innerh(b[i])){
    		if (a[i] > n){
    			ans += a[i] - n;
    			
    			dp[n][b[i]]++;
    		}
    		
    		else{
    			ans += 1 - a[i];
    			
    			dp[1][b[i]]++;
    		}
    	}
    	
    	if (innery(a[i])){
    		if (b[i] > 2){
    			ans += b[i] - 2;
    			
    			dp[a[i]][2]++;
    		}
    		
    		else{
    			ans += 1 - b[i];
    			
    			dp[a[i]][1]++;
    		}
    	}
    	
    	if (a[i] < 1 && b[i] > 2){
    		ans += b[i] - 2 + 1 - a[i];
    		
    		dp[1][2]++;
    	}
    	
    	if (a[i] > n && b[i] > 2){
    		ans += b[i] - 2 + a[i] - n;
    		
    		dp[n][2]++;
    	}
    	
    	if (a[i] < 1 && b[i] < 1){
    		ans += 1 - b[i] + 1 - a[i];
    		
    		dp[1][1]++;
    	}
    	
    	if (a[i] > n && b[i] < 1){
    		ans += a[i] - n + 1 - b[i];
    		
    		dp[n][1]++;
    	}
    }
    
    ll l = 1;
    
    for (ll i = 1; i <= n; i++){
    	while(dp[i][1] > 1){
    		if (!dp[l][1]){
    			dp[l][1] = 1;
    			
    			dp[i][1]--;
    			
    			ans += abs(i - l);
    		}
    		
    		else if (!dp[l][2]){
    			dp[l][2] = 1;
    			
    			dp[i][1]--;
    			
    			ans += abs(i - l) + 1;
    		}
    		
    		if (dp[l][1] && dp[l][2]) l++;
    	}
    	
    	while(dp[i][2] > 1){
    		if (!dp[l][2]){
    			dp[l][2] = 1;
    			
    			dp[i][2]--;
    			
    			ans += abs(i - l);
    		}
    		
    		else if (!dp[l][1]){
    			dp[l][1] = 1;
    			
    			dp[i][2]--;
    			
    			ans += abs(i - l) + 1;
    		}
    		
    		if (dp[l][1] && dp[l][2]) l++;
    	}
    }
    
    cout << ans;
}

int main(){
    kebzaro

    judge("");

    ll TT = 1, tests = 1;

    //cin >> TT;

    while(TT--){
        //cout << "Case " << tests << ": ";

        sarsen();

        //tests++;
    }

    return 0;
}
/**



*/

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'void judge(std::string)':
joi2019_ho_t4.cpp:95:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   95 |                 freopen((name + ".in").c_str(), "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t4.cpp:96:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   96 |                 freopen((name + "out").c_str(), "w", stdout);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 8
• Subtask 2: 0 / 29
• Subtask 3: 0 / 63