fork download
copy 
  1. #include<cstdio>
  2. int virus[100][100];
  3. int change[100][100];
  4. int n,m;
  5. bool care(){
  6. 	for(int i=0;i<n;i++){
  7. 		for(int j=0;j<m;j++){
  8. 			if(virus[i][j]==1) return false;
  9. 		}
  10. 	}
  11. 	return true;
  12. }
  13. int main(){
  14. 	scanf("%d%d",&n,&m);
  15. 	for(int i=0;i<n;i++){
  16. 		for(int j=0;j<m;j++){
  17. 			scanf("%d",&virus[i][j]);
  18. 		}
  19. 	}
  20. 	int cnt=0;
  21. 	while(!care()){
  22. 		cnt++;
  23. 		for(int i=1;i<n-1;i++){
  24. 			for(int j=1;j<m-1;j++){
  25. 				if(virus[i][j]==1&&(virus[i-1][j]+virus[i+1][j]+virus[i][j-1]+virus[i][j+1])<=2){
  26. 					change[i][j]=1;
  27. 		//			printf("nice");
  28. 				}
  29. 			}
  30. 		}
  31. 		for(int i=1;i<n-1;i++){
  32. 			for(int j=1;j<m-1;j++){
  33. 				virus[i][j]-=change[i][j];
  34. 				change[i][j]=0;
  35. 			}
  36. 		}
  37. 		for(int i=0;i<n;i++){
  38. 			for(int j=0;j<m;j++){
  39. 	//			printf("%d",virus[i][j]);	
  40. 			}
  41. 	//		printf("\n");
  42. 		}
  43. 	//	printf("\n");
  44. 	}
  45. 	printf("%d",cnt);
  46. }
Success #stdin #stdout 0s 3420KB
comments (?)
stdin
copy 
8 9 
0 0 0 0 0 0 0 0 0 
0 0 0 1 1 0 1 1 0 
0 0 0 1 1 0 1 1 0 
0 1 1 1 1 1 1 1 0 
0 1 1 1 1 1 1 1 0 
0 1 1 1 0 1 1 0 0 
0 1 1 0 0 1 1 0 0 
0 0 0 0 0 0 0 0 0
stdout
copy 
5
https://ideone.com/bOkeXp
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!