QOJ.ac

QOJ

ID	Problem	Submitter	Result	Time	Memory	Language	File size	Submit time	Judge time
#508184	#9158. 分数	251Sec	50	570ms	126516kb	C++14	2.4kb	2024-08-07 08:16:26	2024-08-07 08:16:26

Judging History

你现在查看的是最新测评结果

[2024-08-07 08:16:26]
评测

测评结果：50
用时：570ms
内存：126516kb

查看

[2024-08-07 08:16:26]
提交

answer

#include <bits/stdc++.h>
using std::bitset;
using std::cout;
using std::deque;
using std::endl;
using std::greater;
using std::lower_bound;
using std::make_pair;
using std::map;
using std::max;
using std::min;
using std::multimap;
using std::multiset;
using std::nth_element;
using std::pair;
using std::priority_queue;
using std::queue;
using std::reverse; 
using std::set;
using std::sort;
using std::sqrt;
using std::stable_sort;
using std::string;
using std::swap;
using std::unique;
using std::upper_bound;
using std::vector;
typedef int li;
typedef long double lf;

inline li read(){
	li ans = 0, f = 1;
	char ch = getchar();
	while(ch < '0' || ch > '9'){
		f = (ch == '-') ? -1 : 1;
		ch = getchar();
	}
	while(ch <= '9' && ch >= '0'){
		ans = ans * 10 + (ch ^ 48);
		ch = getchar();
	}
	return ans * f;
} 

li n, m;
//std::unordered_map<li, li> mp;

struct hash_table{
	li head[(int)5e6 + 12], next[int(5e7) + 9], lenp;
	long long val[(int)5e7 + 9];
	const li mod = 5e6 + 9;
	li query(long long x){
//		cout << x << endl;
		li p = x % mod;
		for(li i = head[p]; i; i = next[i]){
			if(val[i] == x) return 1;
		}
//		cout << x << endl;
		next[++lenp] = head[p];
		val[lenp] = x;
		head[p] = lenp;
		return 0;
	}
} mp;

li ans;
queue<pair<li, li>> qu;
void dfs(li p, li q){
//	cout << p << " " << q << endl;
	if(mp.query(p * 1000000000ll + q)) return;
//	cout << p << " " << q << endl;
//	if(mp[p * 1000000000 + q]) return;
//	mp[p * 1000000000 + q] = 1;
	ans++;
//	if(ans % 10000)
	if(1 <= q && q <= n && 1 <= p && p <= m) dfs(q, p);
	if(p > 2 * q) dfs(p - 2 * q, q);
	if(p + 2 * q <= n) dfs(p + 2 * q, q);
}

int main(){
//	freopen("wonderful.ans", "r", stdin);
//	freopen("www.ww", "w", stdout);
//	double begin = clock();
	mp.lenp = 0;
	n = read(), m = read();
//	dfs(1, 2);
	qu.push({1, 2});
	mp.query(1 * 1000000000ll + 2);
	while(!qu.empty()){
		ans++;
		li p = qu.front().first, q = qu.front().second;
		qu.pop();
//		cout << p << " " << q << endl;
		if(1 <= q && q <= n && 1 <= p && p <= m){ 
			if(!mp.query(q * 1000000000ll + p)) qu.push({q, p});
		}			
		if(p > 2 * q){
			if(!mp.query((p - 2 * q) * 1000000000ll + q)) qu.push({p - 2 * q, q});
		}
		if(p + 2 * q <= n){
			if(!mp.query((p + 2 * q) * 1000000000ll + q)) qu.push({p + 2 * q, q});
		}
	}
	printf("%d\n", ans);
//	printf("%.4Lf s\n", (lf)(clock() - (lf)begin) / (lf)CLOCKS_PER_SEC);
	return 0;
}

Source code, Language: C++14

Details

Tip: Click on the bar to expand more detailed information

Pretests

Pretest #1:

score: 5

Accepted

time: 1ms

memory: 6356kb

input:

99 99

output:

result:

ok 1 number(s): "406"

Pretest #2:

score: 5

Accepted

time: 1ms

memory: 6160kb

input:

98 97

output:

result:

ok 1 number(s): "405"

Pretest #3:

score: 5

Accepted

time: 1ms

memory: 6424kb

input:

99 96

output:

result:

ok 1 number(s): "396"

Pretest #4:

score: 5

Accepted

time: 3ms

memory: 10540kb

input:

995 977

output:

result:

ok 1 number(s): "11153"

Pretest #5:

score: 5

Accepted

time: 0ms

memory: 10852kb

input:

991 990

output:

result:

ok 1 number(s): "11220"

Pretest #6:

score: 5

Accepted

time: 0ms

memory: 12488kb

input:

976 968

output:

result:

ok 1 number(s): "10900"

Pretest #7:

score: 0

Wrong Answer

time: 4ms

memory: 28168kb

input:

7602 7864

output:

result:

wrong answer 1st numbers differ - expected: '215706', found: '210506'

Pretest #8:

score: 5

Accepted

time: 11ms

memory: 27984kb

input:

7959 7735

output:

result:

ok 1 number(s): "220256"

Pretest #9:

score: 5

Accepted

time: 4ms

memory: 28204kb

input:

7878 7863

output:

result:

ok 1 number(s): "221162"

Pretest #10:

score: 5

Accepted

time: 8ms

memory: 28304kb

input:

7788 7658

output:

result:

ok 1 number(s): "215323"

Pretest #11:

score: 0

Wrong Answer

time: 529ms

memory: 119300kb

input:

95399 99767

output:

result:

wrong answer 1st numbers differ - expected: '8285295', found: '8018282'

Pretest #12:

score: 0

Wrong Answer

time: 556ms

memory: 122792kb

input:

98051 99642

output:

result:

wrong answer 1st numbers differ - expected: '8439713', found: '8341748'

Pretest #13:

score: 0

Wrong Answer

time: 516ms

memory: 121456kb

input:

95624 96007

output:

result:

wrong answer 1st numbers differ - expected: '8068127', found: '8045076'

Pretest #14:

score: 5

Accepted

time: 553ms

memory: 126088kb

input:

99208 98047

output:

result:

ok 1 number(s): "8412610"

Pretest #15:

score: 0

Time Limit Exceeded

input:

997417 967722

output:

result:

Pretest #16:

score: 0

Time Limit Exceeded

input:

987807 956529

output:

result:

Pretest #17:

score: 0

Time Limit Exceeded

input:

971654 984345

output:

result:

Pretest #18:

score: 0

Time Limit Exceeded

input:

7892259 7983727

output:

result:

Pretest #19:

score: 0

Time Limit Exceeded

input:

7937869 29796968

output:

result:

Pretest #20:

score: 0

Time Limit Exceeded

input:

29717543 29510173

output:

result:

Final Tests

Test #1:

score: 0

Wrong Answer

time: 0ms

memory: 6136kb

input:

96 98

output:

result:

wrong answer 1st numbers differ - expected: '396', found: '386'

Test #2:

score: 5

Accepted

time: 0ms

memory: 6136kb

input:

100 99

output:

result:

ok 1 number(s): "408"

Test #3:

score: 5

Accepted

time: 1ms

memory: 6068kb

input:

99 99

output:

result:

ok 1 number(s): "406"

Test #4:

score: 5

Accepted

time: 0ms

memory: 10292kb

input:

963 951

output:

result:

ok 1 number(s): "10634"

Test #5:

score: 0

Wrong Answer

time: 0ms

memory: 12340kb

input:

958 974

output:

result:

wrong answer 1st numbers differ - expected: '10795', found: '10642'

Test #6:

score: 0

Wrong Answer

time: 0ms

memory: 10340kb

input:

966 990

output:

result:

wrong answer 1st numbers differ - expected: '11003', found: '10786'

Test #7:

score: 5

Accepted

time: 4ms

memory: 28220kb

input:

7958 7947

output:

result:

ok 1 number(s): "224482"

Test #8:

score: 0

Wrong Answer

time: 11ms

memory: 28276kb

input:

7623 7730

output:

result:

wrong answer 1st numbers differ - expected: '213444', found: '211290'

Test #9:

score: 5

Accepted

time: 14ms

memory: 28240kb

input:

7845 7783

output:

result:

ok 1 number(s): "218916"

Test #10:

score: 5

Accepted

time: 8ms

memory: 28204kb

input:

7881 7773

output:

result:

ok 1 number(s): "219451"

Test #11:

score: 5

Accepted

time: 542ms

memory: 126516kb

input:

99414 98698

output:

result:

ok 1 number(s): "8465217"

Test #12:

score: 5

Accepted

time: 570ms

memory: 123748kb

input:

98249 96148

output:

result:

ok 1 number(s): "8237486"

Test #13:

score: 5

Accepted

time: 537ms

memory: 125292kb

input:

99003 96832

output:

result:

ok 1 number(s): "8324931"

Test #14:

score: 5

Accepted

time: 529ms

memory: 126396kb

input:

98266 96030

output:

result:

ok 1 number(s): "8231065"

Test #15:

score: 0

Time Limit Exceeded

input:

968207 958885

output:

result:

Test #16:

score: 0

Time Limit Exceeded

input:

959846 998397

output:

result:

Test #17:

score: 0

Time Limit Exceeded

input:

965821 972280

output:

result:

Test #18:

score: 0

Time Limit Exceeded

input:

7855098 7962479

output:

result:

Test #19:

score: 0

Time Limit Exceeded

input:

7841076 29648718

output:

result:

Test #20:

score: 0

Time Limit Exceeded

input:

29365129 29012208