結果
問題 | No.817 Coin donation |
ユーザー |
![]() |
提出日時 | 2019-04-19 21:30:49 |
言語 | C++11 (gcc 8.5.0) |
結果 |
AC
|
実行時間 | 27 ms / 2,000 ms |
コード長 | 2,305 bytes |
コンパイル時間 | 1,429 ms |
使用メモリ | 5,272 KB |
最終ジャッジ日時 | 2022-11-22 06:10:41 |
合計ジャッジ時間 | 2,341 ms |
ジャッジサーバーID (参考情報) |
judge13 / judge14 |
テストケース
テストケース表示入力 | 結果 | 実行時間 使用メモリ |
---|---|---|
testcase_00 | AC | 2 ms
3,604 KB |
testcase_01 | AC | 2 ms
3,596 KB |
testcase_02 | AC | 2 ms
3,600 KB |
testcase_03 | AC | 2 ms
3,740 KB |
testcase_04 | AC | 2 ms
3,760 KB |
testcase_05 | AC | 3 ms
3,680 KB |
testcase_06 | AC | 5 ms
3,948 KB |
testcase_07 | AC | 7 ms
4,012 KB |
testcase_08 | AC | 20 ms
4,788 KB |
testcase_09 | AC | 7 ms
3,916 KB |
testcase_10 | AC | 27 ms
5,168 KB |
testcase_11 | AC | 27 ms
5,160 KB |
testcase_12 | AC | 27 ms
5,272 KB |
testcase_13 | AC | 2 ms
3,600 KB |
testcase_14 | AC | 2 ms
3,788 KB |
testcase_15 | AC | 2 ms
3,756 KB |
ソースコード
#include <bits/stdc++.h> #define ADD(a, b) a = (a + ll(b)) % mod #define MUL(a, b) a = (a * ll(b)) % mod #define MAX(a, b) a = max(a, b) #define MIN(a, b) a = min(a, b) #define rep(i, a, b) for(int i = int(a); i < int(b); i++) #define rer(i, a, b) for(int i = int(a) - 1; i >= int(b); i--) #define all(a) (a).begin(), (a).end() #define sz(v) (int)(v).size() #define pb push_back #define sec second #define fst first #define debug(fmt, ...) Debug(__LINE__, ":", fmt, ##__VA_ARGS__) using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair<int, int> pi; typedef pair<ll, ll> pl; typedef pair<int, pi> ppi; typedef vector<int> vi; typedef vector<ll> vl; typedef vector<vl> mat; typedef complex<double> comp; void Debug() {cerr << '\n'; } template<class FIRST, class... REST>void Debug(FIRST arg, REST... rest){ cerr<<arg<<" ";Debug(rest...);} template<class T>ostream& operator<<(ostream& out,const vector<T>& v) { out<<"[";if(!v.empty()){rep(i,0,sz(v)-1)out<<v[i]<<", ";out<<v.back();}out<<"]";return out;} template<class S, class T>ostream& operator<<(ostream& out,const pair<S, T>& v){ out<<"("<<v.first<<", "<<v.second<<")";return out;} const int MAX_N = 300010; const int MAX_V = 100010; const double eps = 1e-6; const ll mod = 1000000007; const int inf = 1 << 30; const ll linf = 1LL << 60; const double PI = 3.14159265358979323846; mt19937 rng; //use it by rng() % mod, shuffle(all(vec), rng) /////////////////////////////////////////////////////////////////////////////////////////////////// int N; ll K; ll A[MAX_N], B[MAX_N]; bool ok(ll m) { ll res = 0; rep(i, 0, N) { if(A[i] <= m) { res += max(min(m, B[i]) - A[i] + 1, 0ll); } } return res >= K; } void solve() { cin >> N >> K; rep(i, 0, N) { cin >> A[i] >> B[i]; } ll lv = -1, rv = 1000000010; while(rv - lv > 1) { ll m = (lv + rv) / 2; if(ok(m)) rv = m; else lv = m; } cout << rv << "\n"; } int main() { #ifndef LOCAL ios::sync_with_stdio(false); cin.tie(0); #endif cout << fixed; cout.precision(20); cerr << fixed; cerr.precision(6); rng.seed((int)time(0)); #ifdef LOCAL //freopen("in.txt", "wt", stdout); //for tester freopen("in.txt", "rt", stdin); #endif solve(); cerr << "Time elapsed: " << 1.0 * clock() / CLOCKS_PER_SEC << " s.\n"; return 0; }