oj.uz

답안 #867872

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
867872 2023-10-29T16:19:45 Z efedmrlr Let's Win the Election (JOI22_ho_t3) C++17
5 / 100
 2500 ms 8788 KB 
#include <bits/stdc++.h>

using namespace std;

#define n_l '\n'
#define dbg(...) cout << "[" << #__VA_ARGS__ << "]: "; cout << to_string(__VA_ARGS__) << endl
template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)),  __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); } 
#define dbgm(...) cout << "[" << #__VA_ARGS__ << "]: "; dbgm(__VA_ARGS__); cout << endl


#define int long double
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)
#define ld long double
void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}


const double EPS = 0.000001;
const ld INF = 2e6;
const int N = 600;
const int M = 3e5+5;
const int ALPH = 26;
const int LGN = 25;
const int MOD = 1e9+7;
int n,m,q,K;
vector<array<int,2> > a;
vector<vector<ld> > dp, dpnew;
inline void solve() {
    cin >> n >> K;
    a.resize(n+1);
    a[0] = {0, 0};
    REP(i,n) {
        cin >> a[i + 1][1] >> a[i + 1][0];
        if(a[i + 1][0] == -1) a[i + 1][0] = INF;
    }
    sort(a.begin(), a.end());
    dp.assign(n + 10, vector<ld>(n + 10, INF));
    dpnew.assign(n + 10, vector<ld> (n + 10, INF));
    dp[0][0] = 0;
    for(int i = 1; i<=n; i++) {
        for(int k = 0; k<=K; k++) {
            for(int b = 0; b<=K; b++) {
                dpnew[k][b] = dp[k][b];
                if(k > 0)
                {
                    dpnew[k][b] = min(dpnew[k][b], dp[k - 1][b] + (ld) a[i][1] / (ld)(b + 1));
                    
                    
                    if(b > 0 && abs(a[i][0] - INF) >= EPS) {
                        dpnew[k][b] = min(dpnew[k][b], dp[k - 1][b - 1] + ((ld) a[i][0] / (ld)b));
                    }
                }
            }
        }
        swap(dp, dpnew);
    }
    ld ans = INF;
    for(int b = 0; b<=n; b++) {
        ans = min(ans , dp[K][b]);
    }
    cout<<ans<<"\n";

}    
 
signed main() {
    fastio();
    int test = 1;
    //cin>>test;
    while(test--) {
        solve();
    }
    
}

Compilation message

Main.cpp: In function 'std::string to_string(std::string, int, int)':
Main.cpp:7:208: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    7 | template <typename T, size_t N> int SIZE(const T (&t)[N]){ return N; } template<typename T> int SIZE(const T &t){ return t.size(); } string to_string(const string s, int x1=0, int x2=1e9){ return '"' + ((x1 < s.size()) ? s.substr(x1, x2-x1+1) : "") + '"'; } string to_string(const char* s) { return to_string((string) s); } string to_string(const bool b) { return (b ? "true" : "false"); } string to_string(const char c){ return string({c}); } template<size_t N> string to_string(const bitset<N> &b, int x1=0, int x2=1e9){ string t = ""; for(int __iii__ = min(x1,SIZE(b)),  __jjj__ = min(x2, SIZE(b)-1); __iii__ <= __jjj__; ++__iii__){ t += b[__iii__] + '0'; } return '"' + t + '"'; } template <typename A, typename... C> string to_string(const A (&v), int x1=0, int x2=1e9, C... coords); int l_v_l_v_l = 0, t_a_b_s = 0; template <typename A, typename B> string to_string(const pair<A, B> &p) { l_v_l_v_l++; string res = "(" + to_string(p.first) + ", " + to_string(p.second) + ")"; l_v_l_v_l--; return res; } template <typename A, typename... C> string to_string(const A (&v), int x1, int x2, C... coords) { int rnk = rank<A>::value; string tab(t_a_b_s, ' '); string res = ""; bool first = true; if(l_v_l_v_l == 0) res += n_l; res += tab + "["; x1 = min(x1, SIZE(v)), x2 = min(x2, SIZE(v)); auto l = begin(v); advance(l, x1); auto r = l; advance(r, (x2-x1) + (x2 < SIZE(v))); for (auto e = l; e != r; e = next(e)) { if (!first) { res += ", "; } first = false; l_v_l_v_l++; if(e != l){ if(rnk > 1) { res += n_l; t_a_b_s = l_v_l_v_l; }; } else{ t_a_b_s = 0; } res += to_string(*e, coords...); l_v_l_v_l--; } res += "]"; if(l_v_l_v_l == 0) res += n_l; return res; } void dbgm(){;} template<typename Heads, typename... Tails> void dbgm(Heads H, Tails... T){ cout << to_string(H) << " | "; dbgm(T...); }
      |                                                                                                                                                                                                             ~~~^~~~~~~~~~
Main.cpp: In function 'void solve()':
Main.cpp:14:26: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
   14 | #define REP(i,n) for(int (i) = 0; (i) < (n); (i)++)
      |                          ^
Main.cpp:36:5: note: in expansion of macro 'REP'
   36 |     REP(i,n) {
      |     ^~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 31 ms 8604 KB Output is correct
6 Correct 151 ms 8536 KB Output is correct
7 Correct 596 ms 8648 KB Output is correct
8 Correct 1325 ms 8788 KB Output is correct
9 Correct 2384 ms 8648 KB Output is correct
10 Correct 1163 ms 8652 KB Output is correct

Subtask #2
0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 31 ms 8604 KB Output is correct
6 Correct 151 ms 8536 KB Output is correct
7 Correct 596 ms 8648 KB Output is correct
8 Correct 1325 ms 8788 KB Output is correct
9 Correct 2384 ms 8648 KB Output is correct
10 Correct 1163 ms 8652 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 295 ms 8656 KB Output is correct
13 Correct 245 ms 8536 KB Output is correct
14 Correct 229 ms 8784 KB Output is correct
15 Correct 1397 ms 8660 KB Output is correct
16 Correct 1356 ms 8644 KB Output is correct
17 Correct 1202 ms 8776 KB Output is correct
18 Execution timed out 2565 ms 8540 KB Time limit exceeded
19 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 500 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #4
0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 500 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #5
0 / 33.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 500 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Incorrect 0 ms 348 KB Output isn't correct
10 Halted 0 ms 0 KB -

Subtask #6
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Execution timed out 2521 ms 8540 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #7
0 / 23.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 31 ms 8604 KB Output is correct
6 Correct 151 ms 8536 KB Output is correct
7 Correct 596 ms 8648 KB Output is correct
8 Correct 1325 ms 8788 KB Output is correct
9 Correct 2384 ms 8648 KB Output is correct
10 Correct 1163 ms 8652 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 295 ms 8656 KB Output is correct
13 Correct 245 ms 8536 KB Output is correct
14 Correct 229 ms 8784 KB Output is correct
15 Correct 1397 ms 8660 KB Output is correct
16 Correct 1356 ms 8644 KB Output is correct
17 Correct 1202 ms 8776 KB Output is correct
18 Execution timed out 2565 ms 8540 KB Time limit exceeded
19 Halted 0 ms 0 KB -