oj.uz

Submission #937489

# Submission time Handle Problem Language Result Execution time Memory
937489 2024-03-04T07:07:41 Z Wansur Soccer Stadium (IOI23_soccer) C++17
0 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
#define f first
#define s second
#define ent '\n'

#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")

typedef long long ll;
using namespace std;
struct seg{
    int m1,m2,sum,cnt;
};

const string out[2]={"NO\n","YES\n"};

const ll dx[]={0,1,0,-1,-1,1,1,-1};
const ll dy[]={1,0,-1,0,-1,1,-1,1};
const int mod=998244353;
const int md=1e9+7;
const int mx=2e3+12;
const bool T=0;

bool used[2001][2001];
int n;

void dfs(int x,int y){
    used[x][y]=1;
    for(int i=0;i<4;i++){
        int x1=dx[i]+x,y1=dy[i]+y;
        if(min(x1,y1)>=0 && max(x1,y1)<n && !used[x1][y1]){
            dfs(x1,y1);
        }
    }
}

int biggest_stadium(int N, vector<vector<int>> a){
    int sum=0;
    n=N;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            sum+=!a[i][j];
            if(a[i][j]){
                used[i][j]=1;
            }
        }
    }
    bool ok=0;
    int pos=0;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(!used[i][j]){
                pos=i;
                if(ok)return 0;
                ok=1;
                dfs(i,j);
            }
        }
    }
    int l=-1,r=-1;
    bool sg=0;
    for(int i=pos;i<n;i++){
        int tl=-1,tr=-1;
        for(int j=0;j<n;j++){
            if(!a[i][j]) {
                ok = 1;
                if(tl==-1){
                    tl=j;
                }
                tr=j;
            }
        }
        if(tl==-1)break;
        if(l==-1){
            l=tl,r=tr;
        }
        if(!(l<=tl && tr<=r || tl<=l && r<=tr)){
            return 0;
        }
        if(tl<=l && r<=tr){
            if(sg)return 0;
        }
        else{
            sg=1;
        }
        l=tl,r=tr;
    }
    return sum;
}

Compilation message

soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:77:20: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   77 |         if(!(l<=tl && tr<=r || tl<=l && r<=tr)){
      |              ~~~~~~^~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial

Subtask #1
0.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 1 ms 344 KB ok
6 Incorrect 0 ms 344 KB wrong
7 Halted 0 ms 0 KB -

Subtask #2
0.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB ok
2 Correct 0 ms 344 KB ok
3 Incorrect 1 ms 344 KB wrong
4 Halted 0 ms 0 KB -

Subtask #3
0.0 / 22.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 1 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Incorrect 1 ms 344 KB wrong
5 Halted 0 ms 0 KB -

Subtask #4
0.0 / 18.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 1 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Incorrect 1 ms 344 KB wrong
7 Halted 0 ms 0 KB -

Subtask #5
0.0 / 16.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 1 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Incorrect 1 ms 344 KB wrong
7 Halted 0 ms 0 KB -

Subtask #6
0.0 / 30.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 348 KB partial
2 Correct 1 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 1 ms 344 KB ok
7 Incorrect 0 ms 344 KB wrong
8 Halted 0 ms 0 KB -