Submission #497070

#	Time	Username	Problem	Language	Result	Execution time	Memory
497070		Ziel	Coin Collecting (JOI19_ho_t4)	C++17	0 / 100	1 ms	332 KiB

joi2019_ho_t4

/**
 * LES GREATEABLES BRO TEAM
**/
 
#include <bits/stdc++.h>
 
using namespace std;
 
using ll = long long;
#define sz(x) (int)x.size()
const bool FLAG = false;
void setIO(const string &f = "");
 
string to_string(const string s) {
	return '"' + s + '"';
}
string to_string(const char c) {
 	return char(39) + string(1, c) + char(39);
}
string to_string(const char* s) {
 	return to_string(string(s));
}
string to_string(bool f) {
	return (f ? "true" : "false");
}
template<class A, class B>
string to_string(const pair<A, B> x) {
	return "(" + to_string(x.first) + ", " + to_string(x.second) + ")";
}
template<class A, class B, class C>
string to_string(const tuple<A, B, C> x) {
	return "(" + to_string(get<0>(x)) + ", " + to_string(get<1>(x)) + ", " + to_string(get<2>(x)) + ")";
}
template<class A, class B, class C, class D>
string to_string(const tuple<A, B, C, D> x) {
	return "(" + to_string(get<0>(x)) + ", " + to_string(get<1>(x)) + ", " + to_string(get<2>(x)) + ", " + to_string(get<3>(x)) + ")";
}
template<class T>
string to_string(const T v) {
	string res = "{"; bool f = true;
	for (auto x: v)
		res += (f ? to_string(x) : ", " + to_string(x)), f = false;
	return res + "}";
}
void debug_args() { cerr << "]\n"; }
template<class H, class... T>
void debug_args(H x, T... y) {
	cerr << to_string(x);
	if (sizeof... (y))
	cerr << ", ";
	debug_args(y...);
}
 
#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]: [", debug_args(__VA_ARGS__);
#else
#define debug(...) 47
#endif
 
const int N = 3e5 + 12;
 
int a[N], cnt[N][3];
 
void solve() {
    int n;
    cin >> n;
    ll ans = 0;
    for (int i = 0; i < n + n; i++) {
    	int x, y;
    	cin >> x >> y;
    	if (1 <= x && x <= n) {
    		if (y < 1) {
	    		a[i] = abs(y - 1);
	    		cnt[x][1]++;
	    	} else if (1 <= y && y <= 2) {
	    		a[i] = 0;
	    		cnt[x][y]++;
	    	} else {
	    		a[i] = abs(y - 2);
	    		cnt[x][2]++;
	    	}
    	} else if (1 <= y && y <= 2) {
    		if (x < 1) {
    			a[i] = abs(x - 1);
    			cnt[1][y]++;
    		} else if (1 <= x && x <= n) {
    			a[i] = 0;
    			cnt[x][y]++;
    		} else {
    			a[i] = abs(x - n);
    			cnt[n][y]++;
    		}
    	} else {
    		if (x < 1) {
    			if (y < 1) {
    				a[i] = abs(x - 1) + abs(y - 1);
    				cnt[1][1]++;
    			} else {
    				a[i] = abs(x - 1) + abs(y - 2);
    				cnt[1][2]++;
    			}
    		} else {
    			if (y < 1) {
    				a[i] = abs(x - n) + abs(y - 1);
    				cnt[n][1]++;
    			} else {
    				a[i] = abs(x - n) + abs(y - 2);
    				cnt[n][2]++;
    			}
    		}
    	}
    	ans += a[i];
    }
    multiset<pair<int, int>> coins;
	for (int i = 1; i <= n; i++) {
		if (cnt[i][1] > 1) {
			for (int rep = 0; rep < cnt[i][1] - 1; rep++)
				coins.insert({i, 1});
		}
		if (cnt[i][2] > 1) {
			for (int rep = 0; rep < cnt[i][2] - 1; rep++)
				coins.insert({i, 2});
		}
	}
	
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= 2; j++) {
			if (!cnt[i][j]) {
				auto it = coins.begin();
				if (it != coins.end()) {
					int x = it->first, y = it->second;
					cnt[x][y]--;
					cnt[i][j]++;
					ans += (abs(x - i) + abs(y - j));
					coins.erase(it);
				}
				if (!sz(coins))
					break;
			}
		}
	}
	cout << ans;
}
 
signed main() {
    setIO();
    
    int tt = 1;
    if (FLAG) {
    	cin >> tt;
    }
    while (tt--) {
    	solve();
    }
    
    return 0;
}
 
void setIO(const string &f) {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    if (fopen((f + ".in").c_str(), "r")) {
        freopen((f + ".in").c_str(), "r", stdin);
        freopen((f + ".out").c_str(), "w", stdout);
    }
}

Compilation message (stderr)

joi2019_ho_t4.cpp: In function 'void setIO(const string&)':
joi2019_ho_t4.cpp:163:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  163 |         freopen((f + ".in").c_str(), "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
joi2019_ho_t4.cpp:164:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
  164 |         freopen((f + ".out").c_str(), "w", stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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