Submission #409171

#	Time	Username	Problem	Language	Result	Execution time	Memory
409171		maomao90	MalnaRISC (COI21_malnarisc)	C++17	12 / 100	3 ms	460 KiB

malnarisc

#include <bits/stdc++.h> 
using namespace std;

template <class T>
inline bool mnto(T& a, T b) {return a > b ? a = b, 1 : 0;}
template <class T>
inline bool mxto(T& a, T b) {return a < b ? a = b, 1: 0;}
#define mnto(x, y) x = min(x, (__typeof__(x)) y)
#define mxto(x, y) x = max(x, (__typeof__(x)) y)
#define REP(i, s, e) for (int i = s; i < e; i++)
#define RREP(i, s, e) for (int i = s; i >= e; i--)
typedef long long ll;
typedef long double ld;
#define MP make_pair
#define FI first
#define SE second
typedef pair<int, int> ii;
typedef pair<ll, ll> pll;
#define MT make_tuple
typedef tuple<int, int, int> iii;
#define ALL(_a) _a.begin(), _a.end()
#define pb emplace_back
typedef vector<int> vi;
typedef vector<ii> vii;

#define INF 1000000005
#define LINF 1000000000000000005
#define MOD 1000000007
#define MAXN 200005

int n;
vector<vii> ans;

int main() {
	scanf("%d", &n);
	if (n == 8 || n == 16 || n == 32 || n == 64) {
		int mx = 2;
		int p = mx;
		int jmp = 1;
		while (mx <= n) {
			vii res;
			int cur = mx, prv = 0;
			REP (j, 1, n + 1) {
				if (j > cur - (j - prv) + 1) {
					prv = cur;
					j = cur + 1;
					cur += mx;
					if (cur > n) {
						break;
					}
				}
				res.pb(j, cur - (j - prv) + 1);
			}
			ans.pb(res);
			if (jmp == 1) {
				mx *= 2;
				p = mx;
				jmp = -1;
			} else {
				if (mx == 2) {
					mx = p * 2;
					p = mx;
				} else {
					mx /= 2;
				}
			}
		}
		reverse(ans.begin() + 3, ans.end());
	} else {
		REP (i, 0, n - 1) {
			vii res;
			for (int j = 1; j + 1 <= n; j += 2) {
				res.pb(j, j + 1);
			}
			if (!res.empty()) ans.pb(res);
			res.clear();
			for (int j = 2; j + 1 <= n; j += 2) {
				res.pb(j, j + 1);
			}
			if (!res.empty()) ans.pb(res);
		}
	}
	printf("%d\n", (int) ans.size());
	REP (i, 0, ans.size()) {
		for (ii i : ans[i]) {
			printf("CMPSWP R%d R%d ", i.FI, i.SE);
		}
		printf("\n");
	}
	return 0;
}

Compilation message (stderr)

malnarisc.cpp: In function 'int main()':
malnarisc.cpp:10:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   10 | #define REP(i, s, e) for (int i = s; i < e; i++)
......
   84 |  REP (i, 0, ans.size()) {
      |       ~~~~~~~~~~~~~~~~                  
malnarisc.cpp:84:2: note: in expansion of macro 'REP'
   84 |  REP (i, 0, ans.size()) {
      |  ^~~
malnarisc.cpp:35:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 |  scanf("%d", &n);
      |  ~~~~~^~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 2 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 2 / 10
• Subtask 6: 0 / 10
• Subtask 7: 2 / 10
• Subtask 8: 2 / 10
• Subtask 9: 2 / 10
• Subtask 10: 2 / 10