Submission #12783

# Submission time Handle Problem Language Result Execution time Memory
12783 2015-01-03T13:05:42 Z Qwaz Min-cost GCD (GA9_mcg) C++
57 / 100
605 ms 1084 KB
#include <cstdio>
#include <algorithm>

using namespace std;
typedef long long ll;

const int MAX = 70;
const ll INF = 1234567890123456789LL;

ll p, q, memo[MAX][2];

ll minGcd(ll a, ll b, int level){
	if(a == 0 || b == 0) return 0;

	ll &now = a >= b ? memo[level][0] : memo[level][1];

	if(now != 0) return now;

	if(a >= b){
		now = minGcd(b, a%b, level+1)+p;

		int count = (a - (a%b))/b;
		if((INF - minGcd(a%b, b, level+1))/count > q)
			now = min(now, minGcd(a%b, b, level+1) + q*count);
	} else {
		now = minGcd(b, a, level)+p;

		int count = (b - (b%a))/a;
		if((INF - minGcd(a, b%a, level+1))/count > q)
			now = min(now, minGcd(a, b%a, level+1) + q*count);
	}

	return now;
}

void reset(){
	for(int i = 0; i < MAX; i++)
		memo[i][0] = memo[i][1] = 0;
}

int main(){
	int t;
	for(scanf("%d", &t); t--;){
		ll a, b;
		scanf("%lld%lld%lld%lld", &a, &b, &p, &q);

		printf("%lld\n", minGcd(a, b, 0));

		reset();
	}

	return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 0 ms 1084 KB Output is correct
2 Correct 0 ms 1084 KB Output is correct
3 Correct 0 ms 1084 KB Output is correct
4 Correct 0 ms 1084 KB Output is correct
5 Correct 0 ms 1084 KB Output is correct
6 Correct 0 ms 1084 KB Output is correct
7 Correct 0 ms 1084 KB Output is correct
8 Correct 0 ms 1084 KB Output is correct
9 Correct 0 ms 1084 KB Output is correct
10 Correct 0 ms 1084 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 137 ms 1084 KB Output is correct
2 Correct 160 ms 1084 KB Output is correct
3 Correct 151 ms 1084 KB Output is correct
4 Correct 146 ms 1084 KB Output is correct
5 Correct 142 ms 1084 KB Output is correct
6 Correct 146 ms 1084 KB Output is correct
7 Correct 144 ms 1084 KB Output is correct
8 Correct 133 ms 1084 KB Output is correct
9 Correct 143 ms 1084 KB Output is correct
10 Correct 137 ms 1084 KB Output is correct
11 Correct 136 ms 1084 KB Output is correct
12 Correct 142 ms 1084 KB Output is correct
13 Correct 144 ms 1084 KB Output is correct
14 Correct 2 ms 1084 KB Output is correct
15 Correct 0 ms 1084 KB Output is correct
16 Correct 1 ms 1084 KB Output is correct
17 Correct 0 ms 1084 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 3 ms 1084 KB Output is correct
2 Correct 3 ms 1084 KB Output is correct
3 Correct 2 ms 1084 KB Output is correct
4 Correct 3 ms 1084 KB Output is correct
5 Correct 0 ms 1084 KB Output is correct
6 Correct 2 ms 1084 KB Output is correct
7 Correct 2 ms 1084 KB Output is correct
8 Correct 3 ms 1084 KB Output is correct
9 Correct 0 ms 1084 KB Output is correct
10 Correct 3 ms 1084 KB Output is correct
11 Correct 4 ms 1084 KB Output is correct
12 Correct 0 ms 1084 KB Output is correct
13 Correct 0 ms 1084 KB Output is correct
14 Correct 0 ms 1084 KB Output is correct
15 Correct 0 ms 1084 KB Output is correct
16 Correct 0 ms 1084 KB Output is correct
17 Correct 0 ms 1084 KB Output is correct
18 Correct 0 ms 1084 KB Output is correct
19 Correct 4 ms 1084 KB Output is correct
20 Correct 4 ms 1084 KB Output is correct
21 Correct 5 ms 1084 KB Output is correct
22 Correct 2 ms 1084 KB Output is correct
23 Correct 4 ms 1084 KB Output is correct
24 Correct 4 ms 1084 KB Output is correct
25 Correct 0 ms 1084 KB Output is correct
26 Correct 4 ms 1084 KB Output is correct
27 Correct 3 ms 1084 KB Output is correct
28 Correct 0 ms 1084 KB Output is correct
29 Correct 0 ms 1084 KB Output is correct
30 Correct 4 ms 1084 KB Output is correct
31 Correct 3 ms 1084 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 497 ms 1084 KB Output is correct
2 Correct 504 ms 1084 KB Output is correct
3 Correct 511 ms 1084 KB Output is correct
4 Correct 509 ms 1084 KB Output is correct
5 Correct 501 ms 1084 KB Output is correct
6 Correct 487 ms 1084 KB Output is correct
7 Correct 505 ms 1084 KB Output is correct
8 Correct 521 ms 1084 KB Output is correct
9 Correct 495 ms 1084 KB Output is correct
10 Correct 498 ms 1084 KB Output is correct
11 Correct 497 ms 1084 KB Output is correct
12 Correct 517 ms 1084 KB Output is correct
13 Correct 511 ms 1084 KB Output is correct
14 Incorrect 605 ms 1084 KB Output isn't correct
15 Halted 0 ms 0 KB -