Submission #137715

# Submission time Handle Problem Language Result Execution time Memory
137715 2019-07-28T08:59:07 Z 김세빈(#3278) RLE (BOI06_rle) C++14
0 / 100
645 ms 170996 KB
#include <bits/stdc++.h>

#define pb push_back

using namespace std;

typedef long long ll;
typedef pair <ll, ll> pll;

vector <pll> X;
vector <ll> V[4], A;
ll D[101010], I[101010], P[2020202];
ll n, m, s, mv;

ll cost(ll x, ll t)
{
	if(t) return ((x - 1) / n + 1) * 3;
	else return x / (n + 2) * 3 + min(x % (n + 2), 3ll);
}

void insert(ll p)
{
	ll d = D[p] % 4;
	I[p] = V[d].size();
	V[d].pb(p);
}

void erase(ll p)
{
	ll d = D[p] % 4;
	swap(V[d][I[p]], V[d].back());
	swap(I[p], I[V[d][I[p]]]);
	V[d].pop_back();
}

void change(ll &e, ll x)
{
	A.pb(e); A.pb(x);
	e = x;
}

void make(ll x, ll y, ll e)
{
	ll t;
	
	if(x == e){
		for(; y; ){
			t = (y >= n? n - 1 : y - 1);
			A.pb(e); A.pb(e); A.pb(t);
			y -= t + 1;
		}
	}
	else{
		for(; y; ){
			t = (y >= n + 2? n - 1 : y - 3);
			if(t == -2) A.pb(x);
			else if(t == -1) A.pb(x), A.pb(x);
			else if(t == 0) A.pb(x), A.pb(x), A.pb(x);
			else A.pb(e), A.pb(x), A.pb(t);
			y -= t + 3;
		}
	}
}

int main()
{
	ll i, e, a, b, c, x, y, v;
	
	scanf("%lld%lld", &n, &m);
	
	for(i=0, e=0; i<m; i++){
		scanf("%lld", &a);
		if(a == e){
			scanf("%lld%lld", &b, &c);
			if(b == e) x = e, y = c + 1;
			else if(c == 0) e = b, y = 0;
			else x = b, y = c + 3;
			i += 2;
		}
		else x = a, y = 1;
		
		if(!y) continue;
		else if(!X.empty() && X.back().first == x) X.back().second += y;
		else X.emplace_back(x, y);
	}
	
	m = X.size();
	
	mv = 0;
	
	for(i=0; i<n; i++){
		insert(i);
	}
	
	for(i=m-1; i>=0; i--){
		tie(x, y) = X[i];
		v = cost(y, 0); c = cost(y, 1) - v; s += v;
		erase(x); for(; V[mv % 4].empty(); mv++);
		if(D[x] + c > mv + 3){
			P[i] = V[mv % 4].back() + 1;
			D[x] = mv + 3;
		}
		else D[x] += c;
		insert(x);
	}
	
	printf("%lld\n", s + D[0]);
	
	for(i=0, e=0; i<m; i++){
		tie(x, y) = X[i];
		if(x == e && P[i]) change(e, P[i] - 1);
		make(x, y, e);
	}
	
	if(A.size() != s + D[0]) return 1 / 0;
	
	for(i=0; i<A.size(); i++){
		printf("%lld%c", A[i], " \n"[i == A.size() - 1]);
	}
	
	return 0;
}

Compilation message

rle.cpp: In function 'int main()':
rle.cpp:115:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  if(A.size() != s + D[0]) return 1 / 0;
     ~~~~~~~~~^~~~~~~~~~~
rle.cpp:115:36: warning: division by zero [-Wdiv-by-zero]
  if(A.size() != s + D[0]) return 1 / 0;
                                  ~~^~~
rle.cpp:117:12: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=0; i<A.size(); i++){
           ~^~~~~~~~~
rle.cpp:118:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   printf("%lld%c", A[i], " \n"[i == A.size() - 1]);
                                ~~^~~~~~~~~~~~~~~
rle.cpp:69:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld%lld", &n, &m);
  ~~~~~^~~~~~~~~~~~~~~~~~~~
rle.cpp:72:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld", &a);
   ~~~~~^~~~~~~~~~~~
rle.cpp:74:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%lld%lld", &b, &c);
    ~~~~~^~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Runtime error 3 ms 376 KB Execution killed with signal 4 (could be triggered by violating memory limits)
2 Incorrect 2 ms 376 KB code is not the shortest
3 Runtime error 3 ms 504 KB Execution killed with signal 4 (could be triggered by violating memory limits)
4 Runtime error 4 ms 632 KB Execution killed with signal 4 (could be triggered by violating memory limits)
5 Runtime error 4 ms 632 KB Execution killed with signal 4 (could be triggered by violating memory limits)
6 Runtime error 18 ms 3436 KB Execution killed with signal 4 (could be triggered by violating memory limits)
7 Runtime error 105 ms 16848 KB Execution killed with signal 4 (could be triggered by violating memory limits)
8 Runtime error 142 ms 21948 KB Execution killed with signal 4 (could be triggered by violating memory limits)
9 Runtime error 315 ms 57876 KB Execution killed with signal 4 (could be triggered by violating memory limits)
10 Runtime error 113 ms 17292 KB Execution killed with signal 4 (could be triggered by violating memory limits)
11 Runtime error 88 ms 13652 KB Execution killed with signal 4 (could be triggered by violating memory limits)
12 Runtime error 235 ms 41648 KB Execution killed with signal 4 (could be triggered by violating memory limits)
13 Runtime error 221 ms 34884 KB Execution killed with signal 4 (could be triggered by violating memory limits)
14 Runtime error 93 ms 17748 KB Execution killed with signal 4 (could be triggered by violating memory limits)
15 Runtime error 49 ms 9648 KB Execution killed with signal 4 (could be triggered by violating memory limits)
16 Runtime error 220 ms 32600 KB Execution killed with signal 4 (could be triggered by violating memory limits)
17 Runtime error 282 ms 50840 KB Execution killed with signal 4 (could be triggered by violating memory limits)
18 Runtime error 302 ms 65984 KB Execution killed with signal 4 (could be triggered by violating memory limits)
19 Runtime error 626 ms 143968 KB Execution killed with signal 4 (could be triggered by violating memory limits)
20 Runtime error 645 ms 170996 KB Execution killed with signal 4 (could be triggered by violating memory limits)