답안 #365431

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
365431 2021-02-11T16:36:09 Z farhan132 The Kingdom of JOIOI (JOI17_joioi) C++17
100 / 100
1297 ms 102092 KB
/***Farhan132***/

#include <bits/stdc++.h>
 
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef double dd;
typedef vector<ll> vll;
typedef pair<ll , ll> ii;
typedef vector< ii > vi;
typedef pair < pair < ll , ll > , pair < ll , ll > > cm; 
 
#define ff first
#define ss second
#define pb push_back
#define in insert
#define f0(b) for(int i=0;i<(b);i++)
#define f00(b) for(int j=0;j<(b);j++)
#define f1(b) for(int i=1;i<=(b);i++)
#define f11(b) for(int j=1;j<=(b);j++)
#define f2(a,b) for(int i=(a);i<=(b);i++)
#define f22(a,b) for(int j=(a);j<=(b);j++)
#define sf(a) scanf("%lld",&a)
#define sff(a,b) scanf("%lld %lld", &a , &b)
#define pf(a) printf("%lld\n",a)
#define pff(a,b) printf("%lld %lld\n", a , b)
#define PI 3.14159265359
#define bug printf("**!\n")
#define mem(a , b) memset(a, b ,sizeof(a))
#define front_zero(n) __builtin_clzll(n)
#define back_zero(n) __builtin_ctzll(n)
#define total_one(n) __builtin_popcountll(n)
#define clean fflush(stdout)

const ll mod =  (ll)1e9 + 7;
const ll maxn = (ll)2e5 + 5;
const int nnn = 1048590;
const int inf = numeric_limits<int>::max()-1;
//const ll INF = numeric_limits<ll>::max()-1;
//const ll INF = 1e18;
 
ll dx[]={0,1,0,-1};
ll dy[]={1,0,-1,0};
ll dxx[]={0,1,0,-1,1,1,-1,-1};
ll dyy[]={1,0,-1,0,1,-1,1,-1};

ll a[2005][2005];
ll b[2005][2005];
ll n , m;

void rotate(){
    f1(n){
        f11(m) b[i][j] = a[i][j];
    }
    ll N = m , M = n;
    for(ll i = N; i >= 1; i--){
        for(ll j = 1; j <= M; j++) a[i][j] = b[j][N - i + 1]; 
    }
    swap(n, m);
    return;
}
ll mn = 1e12, mx = 0;
bool check(ll x){
    ll big = m;
    for(ll i = 1; i <= n; i++){
        for(ll j = 1; j <= m; j++){
            ll ok1 = 0, ok2 = 0;
            if(a[i][j] > x) ok1 = 1;
            if(a[i][j] < mx-x) ok2 = 1;
            if(ok1 && ok2) return 0;
            if(j > big){
                if(ok2) return 0;
            }else{
                if(ok1){
                    big = j - 1;
                } 
            }
        }
    }
    return 1;
}

void solve(){

    cin >> n >> m;
    for(ll i = 1; i <= n; i++){
        for(ll j = 1; j <= m; j++) cin >> a[i][j] , mn = min(mn, a[i][j]);
    }    
    for(ll i = 1; i <= n; i++){
        for(ll j = 1; j <= m; j++) a[i][j] -= mn , mx = max(mx, a[i][j]);
    }
    ll ans = mx;
    f1(4){
        ll lo = 0, hg = mx, res = 0;
        while(lo <= hg){
            ll mid = (lo + hg)/2;
            if(check(mid)) res = mid , hg = mid-1;
            else lo = mid+1;
        }
       ans = min(ans, res);
       rotate();
    }
    cout << ans;
    

    return;
    
}

 
int main() {
    
    
    #ifdef LOCAL
        freopen("in.txt", "r", stdin);
        freopen("out.txt", "w", stdout);
    #else 
     //   freopen("cbarn2.in", "r", stdin);
     //   freopen("cbarn2.out", "w", stdout);
     ios_base::sync_with_stdio(0); cin.tie(NULL); cout.tie(NULL);
    #endif
    //cout << fixed << setprecision(10);
   // work(maxn);
    //  mem(b,0);
    ll T;
    T=1;
    //cin >> T; 
    //scanf("%lld",&T);
   // ll CT = 0;
    //work();
    while(T--){
        //cout << "Case " << ++CT <<": " ;
        //printf("Case %lld: ",++CT);
        solve();
    }
 
    return 0;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 2028 KB Output is correct
16 Correct 5 ms 2668 KB Output is correct
17 Correct 9 ms 2924 KB Output is correct
18 Correct 8 ms 2924 KB Output is correct
19 Correct 10 ms 2924 KB Output is correct
20 Correct 10 ms 2940 KB Output is correct
21 Correct 12 ms 3052 KB Output is correct
22 Correct 11 ms 3052 KB Output is correct
23 Correct 16 ms 3052 KB Output is correct
24 Correct 11 ms 2924 KB Output is correct
25 Correct 15 ms 3052 KB Output is correct
26 Correct 11 ms 3052 KB Output is correct
27 Correct 11 ms 3052 KB Output is correct
28 Correct 12 ms 3052 KB Output is correct
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 2 ms 2028 KB Output is correct
16 Correct 5 ms 2668 KB Output is correct
17 Correct 9 ms 2924 KB Output is correct
18 Correct 8 ms 2924 KB Output is correct
19 Correct 10 ms 2924 KB Output is correct
20 Correct 10 ms 2940 KB Output is correct
21 Correct 12 ms 3052 KB Output is correct
22 Correct 11 ms 3052 KB Output is correct
23 Correct 16 ms 3052 KB Output is correct
24 Correct 11 ms 2924 KB Output is correct
25 Correct 15 ms 3052 KB Output is correct
26 Correct 11 ms 3052 KB Output is correct
27 Correct 11 ms 3052 KB Output is correct
28 Correct 12 ms 3052 KB Output is correct
29 Correct 641 ms 85356 KB Output is correct
30 Correct 682 ms 84716 KB Output is correct
31 Correct 713 ms 86508 KB Output is correct
32 Correct 614 ms 86252 KB Output is correct
33 Correct 544 ms 82920 KB Output is correct
34 Correct 727 ms 86388 KB Output is correct
35 Correct 1059 ms 101960 KB Output is correct
36 Correct 994 ms 96628 KB Output is correct
37 Correct 1297 ms 102092 KB Output is correct