Submission #1090788

#	Time	Username	Problem	Language	Result	Execution time	Memory
1090788		vako_p	Costinland (info1cup19_costinland)	C++14	0 / 100	0 ms	348 KiB

costinland

#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define ll long long

const int mxN = 100;	
ll x,n;
char a[mxN][mxN];

void f(ll op, ll idx){
	for(int i = 0; i < 3; i++){
		for(int j = 0; j < 3 and (j != 2 or i != 2); j++) a[idx + i][idx + j] = 'x';
	}
	a[idx][idx + 2] = 'd';
	if(!(op % 2)) a[idx + 2][idx] = 'r';
	if(op < 4) a[idx + 1][idx + 2] = 'd';
	if(op < 2) a[idx + 2][idx + 1] = 'r';  
}

void f1(ll op, ll idx){
	if(op > 1) a[idx][idx] = 'x';
	if(op > 2) a[idx][idx + 1] = 'x';
	if(op > 3) a[idx][idx + 2] = 'x';
	if(op > 4) a[idx + 1][idx] = 'x';
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> x;
  	if(x == 1) for(int i = 0; i >= 0; i++) x++;
	if(x <= 19) n = 5;
	else n = 49;
	for(int i = 0; i < n; i++) for(int j = 0; j < n; j++){
		a[i][j] = '.';
		if(i == n - 1 and j != n - 1) a[i][j] = 'r';
		if(j == n - 1 and i != n - 1) a[i][j] = 'd';
	}
	a[0][0] = 'r';
	ll curr = 1,idx = 0;
	cout << n << ' ' << n << '\n';
	for(int i = 0; i < 24; i++){
		ll op = x % (curr * 6) / curr;
		if(x < curr) break;
		if(x >= curr * 6) f(op, idx);
		else f1(op, idx);
		curr *= 6;
		idx += 2;
	}
	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			if(a[i][j] == 'x') cout << 'X';
			else cout << a[i][j];
		}
		cout << '\n';
	}
}

Compilation message (stderr)

costinland.cpp: In function 'int main()':
costinland.cpp:32:15: warning: iteration 2147483647 invokes undefined behavior [-Waggressive-loop-optimizations]
   32 |    if(x == 1) for(int i = 0; i >= 0; i++) x++;
      |               ^~~
costinland.cpp:32:32: note: within this loop
   32 |    if(x == 1) for(int i = 0; i >= 0; i++) x++;
      |                              ~~^~~~
costinland.cpp: In function 'void f(long long int, long long int)':
costinland.cpp:16:33: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
   16 |  if(op < 4) a[idx + 1][idx + 2] = 'd';
      |             ~~~~~~~~~~~~~~~~~~~~^~~~~
costinland.cpp:8:6: note: at offset 0 to object 'a' with size 10000 declared here
    8 | char a[mxN][mxN];
      |      ^
costinland.cpp:17:33: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
   17 |  if(op < 2) a[idx + 2][idx + 1] = 'r';
      |             ~~~~~~~~~~~~~~~~~~~~^~~~~
costinland.cpp:8:6: note: at offset 0 to object 'a' with size 10000 declared here
    8 | char a[mxN][mxN];
      |      ^

• Subtask 1: 0 / 20
• Subtask 2: 0 / 80