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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5. 	int a,b;
  6. 	cin >> a >> b;
  7. 	cout << a*b << "\n";
  8. 	for(int i =0; i < a; i++) {
  9. 		for(int j =0; j < b; j++) {
  10. 			cout << i*b+b-j;
  11. 			if(j < b-1) cout << " ";}
  12. 		cout << ((i == a-1)?"\n":" ");}
  13. 	return 0;}
Success #stdin #stdout 0s 3344KB
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stdin
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3 2
stdout
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6
2 1 4 3 6 5
https://ideone.com/GxaXqn
SAU qual ACM 2014/15 M
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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