oj.uz

Submission #29415

# Submission time Handle Problem Language Result Execution time Memory
29415 2017-07-19T10:03:07 Z osmanorhan The Kingdom of JOIOI (JOI17_joioi) C++14
100 / 100
 3356 ms 91796 KB 
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <string>
#include <cmath>
#include <list>
#include <climits>
#include <algorithm>
#include <iostream>
#include <map>
#include <queue>
#include <set>
#include <stack>
#include <cassert>
#include <vector>
#define all(x) x.begin() , x.end()
#define fi first
#define se second
#define pb push_back
#define umax( x , y ) x = max( x , (y) )
#define umin( x , y ) x = min( x , (y) )
#define For( i , a ) for(int i=1;i<=a;i++)
#define ort (b+s)/2
#define y2 asrwjaelkf
#define y1 asseopirwjaelkf

using namespace std;

const int maxn = 2020;
const int kokn = 390;
const int MOd = 1e9+7;

typedef long long Lint;
typedef long double db;
typedef pair<int,int> ii;
typedef pair<int,ii> iii;

int a, b;

struct fenwick{
    int fw[maxn];
    int v = 0;
    void clear() {
        for(int i=1;i<=max(a,b);i++) fw[i] = 0;
    }
    void up( int x, int y ) {
        if( v ) {
            x = b - x + 1;
            y = a - y + 1;
        }
        for(int i=x;i>0;i-=i&(-i)) umax( fw[i], y );
    }
    int find( int x ) {
        if( v ) {
            x = b - x + 1;
        }
        int t = 0;
        for(int i=x;i<=b;i+=i&(-i)) umax( t, fw[i] );
        return t;
    }

}l, r;

int ar[maxn][maxn];
vector<iii> v;
int fw[maxn], maxi, mini;

void rot() {
    for(int i=0;i<v.size();i++) {
        v[i].se = ii( b-v[i].se.se+1, v[i].se.fi );
        ar[v[i].se.fi][v[i].se.se] = v[i].fi;
    }
    swap( a, b );
}

void print() {
    printf("------------ %d %d\n",a,b);
    for(int i=1;i<=a;i++,printf("\n"))
        for(int j=1;j<=b;j++) printf("%d ",ar[i][j]);
}

int calc() {
    l.clear();
    r.clear();
    int lo = 0, loc = 1;
    int hi = 1e9, hic = 1;
    int i=0,j=v.size()-1;
    while( i <= j ) {
        if( loc && maxi - v[i].fi >= v[j].fi-mini ) {
            int x = v[i].se.fi;
            int y = v[i].se.se;
            int vv = r.find( y );
            if( x+vv > a ) {
                //printf("asd vi=%d vj=%d vv = %d-- %d %d\n",v[i].fi,v[j].fi,vv,x,y);
                loc = 0;
                continue;
            }
            l.up( y, x );
            i++;
        } else if( hic ) {
            int x = v[j].se.fi;
            int y = v[j].se.se;
            int v = l.find( y );
            if( x <= v ) {
                hic = 0;
                continue;
            }
            //printf("added %d %d\n",x,y);
            r.up( y, x );
            j--;
        } else break;
    }
    return max( maxi-v[i].fi, v[j].fi-mini );
}

int main()
{
    //freopen("asd.in","r",stdin);

    scanf("%d %d",&a,&b);

    for(int i=1;i<=a;i++)
        for(int j=1;j<=b;j++)
            scanf("%d",&ar[i][j]), v.pb( iii( ar[i][j], ii( i, j )) );
    r.v = 1;
    sort( all( v ) );
    maxi = v[v.size()-1].fi;
    mini = v[0].fi;
    int ans = 1e9;
    //rot();
    for(int i=0;i<4;i++) {
        //printf("asd %d\n",i);
        //print();
        umin( ans, calc(  ) );
        rot();
    }
    cout << ans << endl;
}

Compilation message

joioi.cpp: In function 'void rot()':
joioi.cpp:69:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(int i=0;i<v.size();i++) {
                  ^
joioi.cpp: In function 'int calc()':
joioi.cpp:85:9: warning: unused variable 'lo' [-Wunused-variable]
     int lo = 0, loc = 1;
         ^
joioi.cpp:86:9: warning: unused variable 'hi' [-Wunused-variable]
     int hi = 1e9, hic = 1;
         ^
joioi.cpp: In function 'int main()':
joioi.cpp:120:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d",&a,&b);
                         ^
joioi.cpp:124:70: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
             scanf("%d",&ar[i][j]), v.pb( iii( ar[i][j], ii( i, j )) );
                                                                      ^

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17984 KB Output is correct
2 Correct 0 ms 17984 KB Output is correct
3 Correct 0 ms 17984 KB Output is correct
4 Correct 0 ms 17984 KB Output is correct
5 Correct 0 ms 17984 KB Output is correct
6 Correct 0 ms 17984 KB Output is correct
7 Correct 0 ms 17984 KB Output is correct
8 Correct 0 ms 17984 KB Output is correct
9 Correct 0 ms 17984 KB Output is correct
10 Correct 0 ms 17984 KB Output is correct
11 Correct 0 ms 17984 KB Output is correct
12 Correct 0 ms 17984 KB Output is correct
13 Correct 0 ms 17984 KB Output is correct
14 Correct 0 ms 17984 KB Output is correct

Subtask #2
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17984 KB Output is correct
2 Correct 0 ms 17984 KB Output is correct
3 Correct 0 ms 17984 KB Output is correct
4 Correct 0 ms 17984 KB Output is correct
5 Correct 0 ms 17984 KB Output is correct
6 Correct 0 ms 17984 KB Output is correct
7 Correct 0 ms 17984 KB Output is correct
8 Correct 0 ms 17984 KB Output is correct
9 Correct 0 ms 17984 KB Output is correct
10 Correct 0 ms 17984 KB Output is correct
11 Correct 0 ms 17984 KB Output is correct
12 Correct 0 ms 17984 KB Output is correct
13 Correct 0 ms 17984 KB Output is correct
14 Correct 0 ms 17984 KB Output is correct
15 Correct 0 ms 18156 KB Output is correct
16 Correct 6 ms 19220 KB Output is correct
17 Correct 9 ms 19220 KB Output is correct
18 Correct 13 ms 19220 KB Output is correct
19 Correct 13 ms 19220 KB Output is correct
20 Correct 9 ms 19220 KB Output is correct
21 Correct 9 ms 19220 KB Output is correct
22 Correct 13 ms 19220 KB Output is correct
23 Correct 13 ms 19220 KB Output is correct
24 Correct 16 ms 19220 KB Output is correct
25 Correct 9 ms 19220 KB Output is correct
26 Correct 13 ms 19220 KB Output is correct
27 Correct 6 ms 19220 KB Output is correct
28 Correct 13 ms 19220 KB Output is correct

Subtask #3
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 17984 KB Output is correct
2 Correct 0 ms 17984 KB Output is correct
3 Correct 0 ms 17984 KB Output is correct
4 Correct 0 ms 17984 KB Output is correct
5 Correct 0 ms 17984 KB Output is correct
6 Correct 0 ms 17984 KB Output is correct
7 Correct 0 ms 17984 KB Output is correct
8 Correct 0 ms 17984 KB Output is correct
9 Correct 0 ms 17984 KB Output is correct
10 Correct 0 ms 17984 KB Output is correct
11 Correct 0 ms 17984 KB Output is correct
12 Correct 0 ms 17984 KB Output is correct
13 Correct 0 ms 17984 KB Output is correct
14 Correct 0 ms 17984 KB Output is correct
15 Correct 0 ms 18156 KB Output is correct
16 Correct 6 ms 19220 KB Output is correct
17 Correct 9 ms 19220 KB Output is correct
18 Correct 13 ms 19220 KB Output is correct
19 Correct 13 ms 19220 KB Output is correct
20 Correct 9 ms 19220 KB Output is correct
21 Correct 9 ms 19220 KB Output is correct
22 Correct 13 ms 19220 KB Output is correct
23 Correct 13 ms 19220 KB Output is correct
24 Correct 16 ms 19220 KB Output is correct
25 Correct 9 ms 19220 KB Output is correct
26 Correct 13 ms 19220 KB Output is correct
27 Correct 6 ms 19220 KB Output is correct
28 Correct 13 ms 19220 KB Output is correct
29 Correct 2899 ms 91796 KB Output is correct
30 Correct 1906 ms 91796 KB Output is correct
31 Correct 2193 ms 91796 KB Output is correct
32 Correct 3206 ms 91796 KB Output is correct
33 Correct 2606 ms 91796 KB Output is correct
34 Correct 2913 ms 91796 KB Output is correct
35 Correct 2843 ms 91796 KB Output is correct
36 Correct 2286 ms 91796 KB Output is correct
37 Correct 3356 ms 91796 KB Output is correct