Submission #93970

#	Time	Username	Problem	Language	Result	Execution time	Memory
93970		Noam527	Ants (IZhO12_ants)	C++17	0 / 100	2 ms	504 KiB

ants

#include <bits/stdc++.h>
#define CHECK cout << "ok" << endl
#define finish(x) return cout << x << endl, 0
typedef long long ll;
typedef long double ldb;
const int md = 1e9 + 7, inf = 1e9 + 7;
using namespace std;

void debug(string names) {
	cout << '\n';
}
template<typename A1, typename... A2>
void debug(string names, A1 par, A2... left) {
	int pos = 0;
	for (; pos < names.size() && names[pos] != ' ' && names[pos] != ','; pos++)
		cout << names[pos];
	cout << ": " << par << "  ";
	while (pos < names.size() && (names[pos] == ' ' || names[pos] == ',')) {
		pos++;
	}
	names.erase(names.begin(), names.begin() + pos);
	debug(names, left...);
}

struct ant {
	int x, y, d, ind;
	ant() {}
	ant(int xx, int yy, int dd, int ii) {
		x = xx;
		y = yy;
		d = dd;
		ind = ii;
	}
	bool operator < (const ant &a) const {
		if (x != a.x) return x < a.x;
		return y < a.y;
	}
	void advance(int w, int h, int cnt) {
		if (d == 1 || d == 3) {
			cnt %= 2 * w;
			while (cnt--) {
				if (d == 1) x++;
				else x--;
				if (x == 0 || x == w) d ^= 2;
			}
		}
		else {
			cnt %= 2 * h;
			while (cnt--) {
				if (d == 2) y++;
				else y--;
				if (y == 0 || y == h) d ^= 6;
			}
		}
	}
};

int w, h, k, T;
vector<ant> V[102], H[102];
vector<ant> ans;

int main() {
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> w >> h >> k >> T;
	
	ans.resize(k);
	for (int i = 0, par[3]; i < k; i++) {
		cin >> par[0] >> par[1] >> par[2];
		if (par[1] & 1) H[par[1]].push_back(ant(par[0], par[1], par[2], i));
		else V[par[0]].push_back(ant(par[0], par[1], par[2], i));
	}
	vector<int> bef;
	for (int i = 0; i < 102; i++) {
		sort(V[i].begin(), V[i].end());
		bef.resize(V[i].size());
		for (int j = 0; j < bef.size(); j++) bef[j] = V[i][j].ind;
		for (auto &j : V[i]) j.advance(w, h, T);
		sort(V[i].begin(), V[i].end());
		for (int j = 0; j < bef.size(); j++) ans[bef[j]] = V[i][j];

		sort(H[i].begin(), H[i].end());
		bef.resize(H[i].size());
		for (int j = 0; j < bef.size(); j++) bef[j] = H[i][j].ind;
		for (auto &j : H[i]) j.advance(w, h, T);
		sort(H[i].begin(), H[i].end());
		for (int j = 0; j < bef.size(); j++) ans[bef[j]] = H[i][j];
	}
	for (const auto &i : ans) cout << i.x << " " << i.y << " " << i.d << '\n';
}

Compilation message (stderr)

ants.cpp: In function 'int main()':
ants.cpp:76:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < bef.size(); j++) bef[j] = V[i][j].ind;
                   ~~^~~~~~~~~~~~
ants.cpp:79:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < bef.size(); j++) ans[bef[j]] = V[i][j];
                   ~~^~~~~~~~~~~~
ants.cpp:83:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < bef.size(); j++) bef[j] = H[i][j].ind;
                   ~~^~~~~~~~~~~~
ants.cpp:86:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (int j = 0; j < bef.size(); j++) ans[bef[j]] = H[i][j];
                   ~~^~~~~~~~~~~~

• Subtask 1: 0 / 100