Submission #1092505

#TimeUsernameProblemLanguageResultExecution timeMemory
1092505NguyenPhucThangtrapezoid (balkan11_trapezoid)C++14
0 / 100
641 ms1560 KiB
#include <bits/stdc++.h> #define forr(i, a, b) for (int i = (a); i <= (b); i++) #define ford(i, a, b) for (int i = (a); i >= (b); i--) #define forf(i, a, b) for (int i = (a); i < (b); i++) #define fi first #define se second #define pb push_back #define all(v) v.begin(), v.end() #define ll long long #define ld long double #define pii pair<int, int> #define pll pair<ll, ll> #define vi vector<int> #define vii vector<pii> #define mask(i) (1LL << (i)) #define bit(x, i) (((x) >> (i)) & 1) #define bp __builtin_popcountll #define file "test" using namespace std; const int base = 31; const ll mod = 30013; const ll oo = 1e18; const int N = 1e6 + 5; ll dp[N], cnt[N]; struct trapezoid{ int a, b, c, d; bool operator < (const trapezoid &other){ return min(a, c) < min(other.a, other.c); } } trape[N]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); #ifndef ONLINE_JUDGE freopen(file".inp", "r", stdin); freopen(file".out", "w", stdout); #endif int n; cin >> n; forr(i, 1, n) { int a, b, c, d; cin >> a >> b >> c >> d; trape[i] = {a, b, c, d}; } sort(trape + 1, trape + n + 1); forr(i, 1, n) cnt[i] = 1; forr(i, 1, n){ dp[i] = 1; forr(j, 1, i - 1){ if (trape[j].b < trape[i].a && trape[j].d < trape[i].c){ if (dp[j] + 1 > dp[i]) { dp[i] = dp[j] + 1; cnt[i] = cnt[j]; } else if (dp[j] + 1 == dp[i]){ cnt[i] += cnt[j]; cnt[i] %= mod; } } } } int res1 = 0, res2; forr(i, 1, n){ if (res1 < dp[i]) res1 = dp[i], res2 = cnt[i]; } cout << res1 << " " << res2; return 0; }

Compilation message (stderr)

trapezoid.cpp: In function 'int main()':
trapezoid.cpp:41:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |    freopen(file".inp", "r", stdin);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:42:11: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   42 |    freopen(file".out", "w", stdout);
      |    ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
trapezoid.cpp:76:25: warning: 'res2' may be used uninitialized in this function [-Wmaybe-uninitialized]
   76 |  cout << res1 << " " << res2;
      |                         ^~~~
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