Submission #1035649

#	Time	Username	Problem	Language	Result	Execution time	Memory
1035649		c2zi6	Wombats (IOI13_wombats)	C++14	12 / 100	791 ms	262144 KiB

wombats

#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
#define ff first
#define ss second
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define replr(i, a, b) for (int i = int(a); i <= int(b); ++i)
#define reprl(i, a, b) for (int i = int(a); i >= int(b); --i)
#define rep(i, n) for (int i = 0; i < int(n); ++i)
#define mkp(a, b) make_pair(a, b)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> PII;
typedef vector<int> VI;
typedef vector<PII> VPI;
typedef vector<VI> VVI;
typedef vector<VVI> VVVI;
typedef vector<VPI> VVPI;
typedef pair<ll, ll> PLL;
typedef vector<ll> VL;
typedef vector<PLL> VPL;
typedef vector<VL> VVL;
typedef vector<VVL> VVVL;
typedef vector<VPL> VVPL;
template<class T> T setmax(T& a, T b) {if (a < b) return a = b; return a;}
template<class T> T setmin(T& a, T b) {if (a < b) return a; return a = b;}
#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;
template<class T>
using indset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
#include "wombats.h"

const int MAXC = 100;

int n, m;
struct PART {
    int d[MAXC][MAXC];
    PART() {
        clear();
    }
    void clear() {
        rep(i, m) rep(j, m) d[i][j] = 1e9;
    }
    void add(const PART& b) {
        PART c;
        rep(u, m) rep(v, m) rep(mid, m) {
            setmin(c.d[u][v], d[u][mid] + b.d[mid][v]);
        }
        rep(u, m) rep(v, m) d[u][v] = c.d[u][v];
    }
    void set(const PART& a, const PART& b) {
        if (b.d[0][0] == -1) {
            rep(u, m) rep(v, m) d[u][v] = a.d[u][v];
            return;
        }
        PART c;
        rep(u, m) rep(v, m) rep(mid, m) {
            setmin(c.d[u][v], a.d[u][mid] + b.d[mid][v]);
        }
        rep(u, m) rep(v, m) d[u][v] = c.d[u][v];
    }
    void print() {
        rep(i, m) {
            rep(j, m) cout << d[i][j] << " ";
            cout << endl;
        }
        cout << "----------" << endl;
    }
};

vector<PART> a;
VVI H, V;

struct SEGTREE {
    int n;
    vector<PART> tree;
    SEGTREE(){}
    SEGTREE(int sz) {
        n = 1;
        while (n < sz) n *= 2;
        tree = vector<PART>(2*n);
        rep(u, 2*n) {
            rep(i, n) rep(j, m) tree[u].d[i][j] = 0;
            tree[u].d[0][0] = -1;
        }
    }
    void upd(int N, int L, int R, int i, const PART& nw) {
        if (i < L || i > R) return;
        if (L == R) {
            tree[N] = nw;
            return;
        }
        int M = (L + R) / 2;
        upd(2*N+1, L, M, i, nw);
        upd(2*N+2, M+1, R, i, nw);
        tree[N].set(tree[2*N+1], tree[2*N+2]);
    }
    void upd(int i, const PART& nw) {
        upd(0, 0, n-1, i, nw);
    }
    void print() {
        rep(u, 2*n-1) {
            cout << u << ": " << endl;
            tree[u].print();
        }
    }
} seg;

void recalcpart(int ind) {
    replr(i, 0, m-1) {
        int sum = 0;
        replr(j, i, m-1) {
            a[ind].d[i][j] = sum + V[ind][j];
            a[ind].d[j][i] = sum + V[ind][i];
            sum += H[ind][j];
        }
    }
}

void init(int R, int C, int H_arg[5000][200], int V_arg[5000][200]) {
    n = R;
    m = C;
    H = V = VVI(n, VI(m));
    rep(i, n) rep(j, m-1) H[i][j] = H_arg[i][j];
    rep(i, n-1) rep(j, m) V[i][j] = V_arg[i][j];
    a = vector<PART>(n);
    rep(i, n) recalcpart(i);
    seg = SEGTREE(n);
    rep(u, n) seg.upd(u, a[u]);
}

void changeH(int P, int Q, int W) {
    H[P][Q] = W;
    recalcpart(P);
    seg.upd(P, a[P]);
    /* ... */
}

void changeV(int P, int Q, int W) {
    V[P][Q] = W;
    recalcpart(P);
    seg.upd(P, a[P]);
    /* ... */
}

int escape(int u, int v) {
    return seg.tree[0].d[u][v];
}

Compilation message (stderr)

grader.c: In function 'int main()':
grader.c:15:6: warning: variable 'res' set but not used [-Wunused-but-set-variable]
   15 |  int res;
      |      ^~~

• Subtask 1: 0 / 9
• Subtask 2: 12 / 12
• Subtask 3: 0 / 16
• Subtask 4: 0 / 18
• Subtask 5: 0 / 21
• Subtask 6: 0 / 24