oj.uz

Submission #67045

# Submission time Handle Problem Language Result Execution time Memory
67045 2018-08-13T09:14:37 Z MrTEK Maxcomp (info1cup18_maxcomp) C++14
0 / 100
 8 ms 4400 KB 
#include <bits/stdc++.h>

using namespace std;
#define mp make_pair
#define pb push_back
#define len(a) (int)a.size()
#define fi first
#define sc second
#define d1(w) cerr<<#w<<":"<<w<<endl;
#define d2(w,c) cerr<<#w<<":"<<w<<" "<<#c<<":"<<c<<endl;
#define d3(w,c,z) cerr<<#w<<":"<<w<<" "<<#c<<":"<<c<<" "<<#z<<":"<<z<<endl;
#define left ind+ind
#define right ind+ind+1
#define mid (l+r)/2
#define FAST_IO ios_base::sync_with_stdio(false);
#define endl '\n'

const int maxn = 620;
const long long LINF = 1e18;
const int LOG = 31;
const int INF = 1e9;
const int N = 1e3 + 5;
const int M = 4;
const int SQ = 350;
const int MOD = 998244353;

typedef pair <int,int> pii;

struct node {
	int val,x,y;
};

bool operator < (node a ,node b) {
	return a.val < b.val;
}

priority_queue <node> Q;

int n,m,mat[N][N],vis[N][N],ans = -INF,way[4][2] = {{1,0},{0,1},{0,-1},{-1,0}};

int main() {
	scanf("%d %d",&n,&m);
	for (int i = 1 ; i <= n ; i++)
		for (int j = 1 ; j <= m ; j++) {
			scanf("%d",&mat[i][j]);
			Q.push({mat[i][j],i,j});
		}
	memset(vis,-1,sizeof vis);
	while(len(Q)) {
		auto temp = Q.top();
		Q.pop();
		int val = temp.val, x = temp.x,y = temp.y;
		if (vis[x][y] > val) continue;
		ans = max(ans,val - mat[x][y] - 1);
		for (int i = 0 ; i < 4 ; i++) {
			int nx = x + way[i][0] , ny = y + way[i][1];
			if (nx > 0 && nx <= n && ny > 0 && ny <= m && val - 1 > vis[x][y]) {
				vis[x][y] = val - 1;
				Q.push({val - 1,nx,ny});				
			}
		}
	}
	printf("%d\n",ans);

}

Compilation message

maxcomp.cpp: In function 'int main()':
maxcomp.cpp:42:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&n,&m);
  ~~~~~^~~~~~~~~~~~~~~
maxcomp.cpp:45:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d",&mat[i][j]);
    ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 4216 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 4324 KB Output is correct
2 Incorrect 7 ms 4400 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 4216 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 8 ms 4216 KB Output isn't correct
2 Halted 0 ms 0 KB -