oj.uz

Submission #250456

# Submission time Handle Problem Language Result Execution time Memory
250456 2020-07-18T01:26:12 Z fivefourthreeone The Kingdom of JOIOI (JOI17_joioi) C++17
60 / 100
 4000 ms 158948 KB 
#include <bits/stdc++.h>
#define owo(i,a, b) for(int i=(a); i<(b); ++i)
#define uwu(i,a, b) for(int i=(a)-1; i>=(b); --i)
#define senpai push_back
#define ttgl pair<int, int>
#define ayaya cout<<"ayaya~"<<endl
 
using namespace std;
using ll = long long;
using ld = long double;
const ll MOD = 998244353;
int gcd(int a,int b){return b?gcd(b,a%b):a;}
ll binpow(ll a,ll b){ll res=1;while(b){if(b&1)res=(res*a)%MOD;a=(a*a)%MOD;b>>=1;}return res;}
ll modInv(ll a){return binpow(a, MOD-2);}
const double PI = acos(-1);
const int INF = 0x3f3f3f3f;
const int NINF = 0xc0c0c0c0;
const ll INFLL = 0x3f3f3f3f3f3f3f3f;
const ll NINFLL = 0xc0c0c0c0c0c0c0c0;
const int mxN = 2001;
int comp[mxN*mxN];
int board[mxN][mxN];
int cnt[mxN*mxN];
int save[mxN*mxN];
map<int, int>mp;
set<int> aaa;
int w, h;
int mx = 0;
int mn = INF;
int idx = 0;
bool check(int val) {
    int prev = INF;
    bool ok = true;
    owo(i, 0, h) {
        ok = true;
        int curr = -1;
        owo(j, 0, w) {
            //cout<<i<<" "<<j<<" "<<comp[board[i][j]]<<"\n";
            if(mx-comp[board[i][j]]<=val&&j<=prev) {
                curr = j;
                continue;
            }
            owo(k, j, w) {
                if(comp[board[i][k]]-mn>val) {
                    ok = false;
                    break;
                }
            }
            break;
        }
        if(!ok)break;
        prev = curr;
        if(i==h-1)return true;
    }
    prev = -1;
    owo(i, 0, w) {
        ok = true;
        int curr = INF;
        uwu(j, h, 0) {
            if(mx-comp[board[j][i]]<=val&&j>=prev) {
                curr = j;
                continue;
            }
            uwu(k, j, 0) {
                if(comp[board[k][i]]-mn>val) {
                    ok = false;
                    break;
                }
            }
            break;
        }
        if(!ok)break;
        prev = curr;
        if(i==w-1)return true;
    }
    prev = -1;
    uwu(i, h, 0) {
        ok = true;
        int curr = INF;
        uwu(j, w, 0) {
            if(mx-comp[board[i][j]]<=val&&j>=prev) {
                curr = j;
                continue;
            }
            uwu(k, j, 0) {
                if(comp[board[i][k]]-mn>val) {
                    ok = false;
                    break;
                }
            }
            break;
        }
        if(!ok)break;
        prev = curr;
        if(i==0)return true;
    }
    prev = INF;
    uwu(i, w, 0) {
        ok = true;
        int curr = -1;
        owo(j, 0, h) {
            if(mx-comp[board[j][i]]<=val&&j<=prev) {
                curr = j;
                continue;
            }
            owo(k, j, h) {
                if(comp[board[k][i]]-mn>val) {
                    
                    ok = false;
                    break;
                }
            }
            break;
        }
        if(!ok)break;
        prev = curr;
        if(i==0)return true;
    }
    return false;
}
int main()
{    
    //freopen("exercise.in", "r", stdin);
    //freopen("exercise.out", "w", stdout);
    mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
    cin.tie(0)->sync_with_stdio(0);
    cin>>h>>w;
    owo(i, 0, h) {
        owo(j, 0, w) {
            cin>>board[i][j];
            aaa.insert(board[i][j]);
            mx = max(mx, board[i][j]);
            mn = min(mn, board[i][j]);
        }
    }
    auto it = aaa.begin();
    while(it!=aaa.end()) {
        mp[*it] = idx;
        comp[idx] = *it;
        idx++;
        it++;
    }
    owo(i, 0, h) {
        owo(j, 0, w) {
            board[i][j] = mp[board[i][j]];
            save[board[i][j]]++;
        }
    }
    int l = 0;
    int r = mx-mn;
    while(l<r) {
        int mid = (l+r)/2;
        if(check(mid)) {
            r = mid;
        }else{
            l = mid+1;
        }
    }
    cout<<l<<"\n";
    return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 5 ms 1280 KB Output is correct
17 Correct 36 ms 5248 KB Output is correct
18 Correct 34 ms 5248 KB Output is correct
19 Correct 34 ms 5240 KB Output is correct
20 Correct 29 ms 4728 KB Output is correct
21 Correct 40 ms 5376 KB Output is correct
22 Correct 35 ms 5376 KB Output is correct
23 Correct 43 ms 5496 KB Output is correct
24 Correct 32 ms 4864 KB Output is correct
25 Correct 37 ms 5376 KB Output is correct
26 Correct 42 ms 5368 KB Output is correct
27 Correct 40 ms 5368 KB Output is correct
28 Correct 40 ms 5320 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 1 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 0 ms 384 KB Output is correct
15 Correct 1 ms 512 KB Output is correct
16 Correct 5 ms 1280 KB Output is correct
17 Correct 36 ms 5248 KB Output is correct
18 Correct 34 ms 5248 KB Output is correct
19 Correct 34 ms 5240 KB Output is correct
20 Correct 29 ms 4728 KB Output is correct
21 Correct 40 ms 5376 KB Output is correct
22 Correct 35 ms 5376 KB Output is correct
23 Correct 43 ms 5496 KB Output is correct
24 Correct 32 ms 4864 KB Output is correct
25 Correct 37 ms 5376 KB Output is correct
26 Correct 42 ms 5368 KB Output is correct
27 Correct 40 ms 5368 KB Output is correct
28 Correct 40 ms 5320 KB Output is correct
29 Correct 2745 ms 25604 KB Output is correct
30 Correct 2526 ms 26300 KB Output is correct
31 Correct 2928 ms 26236 KB Output is correct
32 Correct 2853 ms 26360 KB Output is correct
33 Correct 2021 ms 22904 KB Output is correct
34 Correct 2552 ms 26232 KB Output is correct
35 Execution timed out 4059 ms 158948 KB Time limit exceeded
36 Halted 0 ms 0 KB -