oj.uz

Submission #45531

# Submission time Handle Problem Language Result Execution time Memory
45531 2018-04-15T00:55:12 Z IvanC Maxcomp (info1cup18_maxcomp) C++17
100 / 100
 206 ms 56176 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e3 + 10;
const int INF = 1e9 + 1e4;
int N,M,matriz[MAXN][MAXN],linear[MAXN],melhor;
int main(){
	scanf("%d %d",&N,&M);
	melhor = 0;
	for(int i = 1;i<=N;i++){
		for(int j = 1;j<=M;j++){
			scanf("%d",&matriz[i][j]);
		}
	}
	for(int i = 1;i<=N;i++) linear[i] = INF;
	for(int j = 1;j<=M;j++){
		int menor = INF;
		for(int i = 1;i<=N;i++){
			linear[i] = min(linear[i] + 1, matriz[i][j] );
			menor = min(menor+1,linear[i]);
			melhor = max(melhor, matriz[i][j] - menor );
		}
		menor = INF;
		for(int i = N;i>=1;i--){
			menor = min(menor+1,linear[i]);
			melhor = max(melhor, matriz[i][j] - menor );
		}
	}
	for(int i = 1;i<=N;i++) linear[i] = INF;
	for(int j = M;j>=1;j--){
		int menor = INF;
		for(int i = 1;i<=N;i++){
			linear[i] = min(linear[i] + 1, matriz[i][j] );
			menor = min(menor+1,linear[i]);
			melhor = max(melhor, matriz[i][j] - menor );
		}
		menor = INF;
		for(int i = N;i>=1;i--){
			menor = min(menor+1,linear[i]);
			melhor = max(melhor, matriz[i][j] - menor );
		}
	}
	printf("%d\n",melhor - 1);
	return 0;
}

Compilation message

maxcomp.cpp: In function 'int main()':
maxcomp.cpp:7:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d",&N,&M);
  ~~~~~^~~~~~~~~~~~~~~
maxcomp.cpp:11:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d",&matriz[i][j]);
    ~~~~~^~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 2 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 2 ms 544 KB Output is correct

Subtask #2
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 544 KB Output is correct
2 Correct 2 ms 544 KB Output is correct
3 Correct 2 ms 544 KB Output is correct

Subtask #3
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 2 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 2 ms 544 KB Output is correct
9 Correct 2 ms 656 KB Output is correct
10 Correct 2 ms 680 KB Output is correct
11 Correct 2 ms 724 KB Output is correct
12 Correct 3 ms 724 KB Output is correct
13 Correct 2 ms 724 KB Output is correct
14 Correct 2 ms 748 KB Output is correct

Subtask #4
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 488 KB Output is correct
3 Correct 2 ms 544 KB Output is correct
4 Correct 2 ms 544 KB Output is correct
5 Correct 2 ms 544 KB Output is correct
6 Correct 2 ms 544 KB Output is correct
7 Correct 2 ms 544 KB Output is correct
8 Correct 2 ms 544 KB Output is correct
9 Correct 2 ms 544 KB Output is correct
10 Correct 2 ms 544 KB Output is correct
11 Correct 2 ms 544 KB Output is correct
12 Correct 2 ms 656 KB Output is correct
13 Correct 2 ms 680 KB Output is correct
14 Correct 2 ms 724 KB Output is correct
15 Correct 3 ms 724 KB Output is correct
16 Correct 2 ms 724 KB Output is correct
17 Correct 2 ms 748 KB Output is correct
18 Correct 202 ms 4564 KB Output is correct
19 Correct 206 ms 13036 KB Output is correct
20 Correct 196 ms 21620 KB Output is correct
21 Correct 197 ms 29800 KB Output is correct
22 Correct 200 ms 38392 KB Output is correct
23 Correct 203 ms 46984 KB Output is correct
24 Correct 179 ms 56176 KB Output is correct