112 lines
2 KiB
C++
112 lines
2 KiB
C++
#include <bits/stdc++.h> // {{{
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// https://codeforces.com/blog/entry/96344
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#pragma GCC optimize("O2,unroll-loops")
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#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
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using namespace std;
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using i32 = int32_t;
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using u32 = uint32_t;
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using i64 = int64_t;
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using u64 = uint64_t;
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using f64 = double;
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using f128 = long double;
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template <typename T>
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constexpr T MIN = std::numeric_limits<T>::min();
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template <typename T>
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constexpr T MAX = std::numeric_limits<T>::max();
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#define all(x) (x).begin(), (x).end()
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#define rall(x) (x).rbegin(), (x).rend()
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#define ff first
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#define ss second
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#ifdef LOCAL
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#define db(...) std::print(__VA_ARGS__)
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#define dbln(...) std::println(__VA_ARGS__)
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#else
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#define db(...)
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#define dbln(...)
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#endif
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// }}}
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struct Cow {
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u32 i;
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i64 x, y;
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};
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void solve() {
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u32 n;
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cin >> n;
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vector<Cow> east_cows, north_cows;
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vector<i64> ans(n, -1);
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char dir;
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i64 x, y;
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for (u32 i = 0; i < n; ++i) {
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cin >> dir >> x >> y;
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Cow cow{i, x, y};
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if (dir == 'E') {
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east_cows.emplace_back(cow);
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} else {
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north_cows.emplace_back(cow);
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}
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}
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sort(all(east_cows), [](auto const& c1, auto const& c2) {
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return c1.y < c2.y;
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});
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sort(all(north_cows), [](auto const& c1, auto const& c2) {
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return c1.x < c2.x;
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});
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for (auto& nc : north_cows) {
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for (auto& ec : east_cows) {
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if (ec.x > nc.x || nc.y >= ec.y || ans[ec.i] != -1)
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continue;
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auto et = nc.x - ec.x;
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auto nt = ec.y - nc.y;
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if (nt < et) {
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ans[ec.i] = et;
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}
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if (et < nt) {
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ans[nc.i] = nt;
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break;
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}
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}
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}
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for (auto& e : ans) {
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if (e == -1) {
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cout << "Infinity";
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} else {
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cout << e;
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}
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cout << '\n';
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}
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}
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int main() { // {{{
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cin.tie(nullptr)->sync_with_stdio(false);
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cin.exceptions(cin.failbit);
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#define PROBLEM_NAME "rut"
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#ifdef LOCAL
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freopen("io/" PROBLEM_NAME ".in", "r", stdin);
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freopen("io/" PROBLEM_NAME ".out", "w", stdout);
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#endif
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solve();
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return 0;
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}
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// }}}
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