Submission #936860

#	Time	Username	Problem	Language	Result	Execution time	Memory
936860		fyan	Copy and Paste 3 (JOI22_copypaste3)	C++14	100 / 100	350 ms	72920 KiB

copypaste3

#include <cstdio>
#include <stdio.h>
#include <iostream>
#include <math.h>
#include <vector>
#include <queue>
#include <stack>
#include <deque>
#include <algorithm>
#include <utility>
#include <set>
#include <map>
#include <stdlib.h>
#include <cstring>
#include <string.h>
#include <string>
#include <sstream>
#include <assert.h>
#include <climits>
#include <sstream>
#include <numeric>
#include <time.h>
#include <limits.h>
#include <list>
#include <bitset>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <iomanip>
#include <complex>
#include <chrono>
#include <fstream>
#include <functional>
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx,avx2,bmi,bmi2,lzcnt,popcnt")
#define lowbit(x) ((x) & -(x))
#define ml(a, b) ((1ll * (a) * (b)) % M)
#define tml(a, b) (a) = ((1ll * (a) * (b)) % M)
#define ad(a, b) ((0ll + (a) + (b)) % M)
#define tad(a, b) (a) = ((0ll + (a) + (b)) % M)
#define mi(a, b) ((0ll + M + (a) - (b)) % M)
#define tmi(a, b) (a) = ((0ll + M + (a) - (b)) % M)
#define tmin(a, b) (a) = min((a), (b))
#define tmax(a, b) (a) = max((a), (b))
#define iter(a) (a).begin(), (a).end()
#define riter(a) (a).rbegin(), (a).rend()
#define init(a, b) memset((a), (b), sizeof(a))
#define cpy(a, b) memcpy((a), (b), sizeof(a))
#define uni(a) a.resize(unique(iter(a)) - a.begin())
#define pb emplace_back
#define mpr make_pair
#define ls(i) ((i) << 1)
#define rs(i) ((i) << 1 | 1)
#define INF 0x3f3f3f3f
#define NIF 0xc0c0c0c0
#define eps 1e-9
#define F first
#define S second
#define AC cin.tie(0)->sync_with_stdio(0)
using namespace std;
typedef long long llt;
typedef pair<int, int> pii;
typedef pair<double, double> pdd;
typedef pair<llt, llt> pll;
typedef complex<double> cd;
// const int M = 998244353;
 
// random_device rm;
// mt19937 rg(rm());
// default_random_engine rg(rm());
// uniform_int_distribution<int> rd(INT_MIN, INT_MAX);
// uniform_real_distribution<double> rd(0, M_PI);
 
void db() { cerr << "\n"; }
template <class T, class... U>
void db(T a, U... b) { cerr << a << " ", db(b...); }
 
void rd() {}
template <typename T, typename... U>
void rd(T &x, U &...y)
{
    x = 0;
    bool f = 0;
    char c = getchar();
    while (!isdigit(c))
        f ^= !(c ^ 45), c = getchar();
    while (isdigit(c))
        x = (x << 1) + (x << 3) + (c ^ 48), c = getchar();
    f && (x = -x), rd(y...);
}
 
template <typename T>
void prt(T x)
{
    if (x < 0)
        putchar('-'), x = -x;
    if (x > 9)
        prt(x / 10);
    putchar((x % 10) ^ 48);
}
 
const int N = 2505;
llt dp[N][N];
int nxt[N][N], z[N];
char s[N];
 
signed main()
{
    int n;
    llt a, b, c;
    scanf("%d%s%lld%lld%lld", &n, s + 1, &a, &b, &c);
    for (int p = 1; p <= n; p++)
    {
        int l = p, r = p, cr = 1;
        for (int i = p + 1; i <= n; i++)
        {
            z[i] = max(0, min(r - i, z[i - l + p]));
            while (i + z[i] <= n && s[i + z[i]] == s[p + z[i]])
                z[i]++;
            if (i + z[i] > r)
                l = i, r = i + z[i];
            for (; cr <= min(z[i], i - p); cr++)
                nxt[p][cr] = i;
        }
        for (int i = 1; i + p - 1 <= n; i++)
            dp[p][i] = a * i;
    }
    for (int k = 1; k <= n; k++)
    {
        for (int i = 1; i + k - 1 <= n; i++)
        {
            tmin(dp[i][k], min(dp[i][k - 1], dp[i + 1][k - 1]) + a);
            llt cr = dp[i][k] + b;
            int ct = 1;
            for (int j = nxt[i][k]; j; j = nxt[j][k])
            {
                ct++;
                tmin(dp[i][j - i + k], cr + c * ct + a * (j - i - k * (ct - 1)));
            }
        }
    }
    prt(dp[1][n]), putchar('\n');

}

Compilation message (stderr)

copypaste3.cpp: In function 'int main()':
copypaste3.cpp:112:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  112 |     scanf("%d%s%lld%lld%lld", &n, s + 1, &a, &b, &c);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 1 / 1
• Subtask 2: 5 / 5
• Subtask 3: 14 / 14
• Subtask 4: 10 / 10
• Subtask 5: 32 / 32
• Subtask 6: 38 / 38