Submission #127297

#	Time	Username	Problem	Language	Result	Execution time	Memory
127297		E869120	Maxcomp (info1cup18_maxcomp)	C++14	100 / 100	188 ms	17100 KiB

maxcomp

#include <iostream>
#include <queue>
#include <algorithm>
#include <functional>
#include <cassert>
using namespace std;
#pragma warning (disable: 4996)

int N, M, A[1009][1009], dist[1009][1009];

int main() {
	scanf("%d%d", &N, &M);
	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= M; j++) { scanf("%d", &A[i][j]); dist[i][j] = A[i][j] - 1; }
	}
	
	for (int i = 1; i <= N; i++) {
		for (int j = 2; j <= M; j++) dist[i][j] = max(dist[i][j], dist[i][j - 1] - 1);
		for (int j = M - 1; j >= 1; j--) dist[i][j] = max(dist[i][j], dist[i][j + 1] - 1);
	}
	for (int i = 1; i <= M; i++) {
		for (int j = 2; j <= N; j++) dist[j][i] = max(dist[j][i], dist[j - 1][i] - 1);
		for (int j = N - 1; j >= 1; j--) dist[j][i] = max(dist[j][i], dist[j + 1][i] - 1);
	}

	int maxn = -1;
	for (int i = 1; i <= N; i++) {
		for (int j = 1; j <= M; j++) maxn = max(maxn, dist[i][j] - A[i][j]);
	}
	cout << maxn << endl;
	return 0;
}

Compilation message (stderr)

maxcomp.cpp:7:0: warning: ignoring #pragma warning  [-Wunknown-pragmas]
 #pragma warning (disable: 4996)
 
maxcomp.cpp: In function 'int main()':
maxcomp.cpp:12:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d%d", &N, &M);
  ~~~~~^~~~~~~~~~~~~~~~
maxcomp.cpp:14:39: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   for (int j = 1; j <= M; j++) { scanf("%d", &A[i][j]); dist[i][j] = A[i][j] - 1; }
                                  ~~~~~^~~~~~~~~~~~~~~~

• Subtask 1: 15 / 15
• Subtask 2: 15 / 15
• Subtask 3: 30 / 30
• Subtask 4: 40 / 40