Submission #12780

# Submission time Handle Problem Language Result Execution time Memory
12780 2015-01-03T12:51:33 Z Qwaz Min-cost GCD (GA9_mcg) C++
30 / 100
475 ms 1084 KB
#include <cstdio>
#include <algorithm>

using namespace std;
typedef long long ll;

const int MAX = 70;

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

ll minGcd(int a, int 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;
		now = min(now, minGcd(a%b, b, level+1) + q*count);
	} else {
		now = minGcd(b, a, level)+p;

		int count = (b - (b%a))/a;
		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--;){
		int a, b;
		scanf("%d%d%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 92 ms 1084 KB Output is correct
2 Correct 100 ms 1084 KB Output is correct
3 Correct 99 ms 1084 KB Output is correct
4 Correct 95 ms 1084 KB Output is correct
5 Correct 87 ms 1084 KB Output is correct
6 Correct 98 ms 1084 KB Output is correct
7 Correct 99 ms 1084 KB Output is correct
8 Correct 88 ms 1084 KB Output is correct
9 Correct 91 ms 1084 KB Output is correct
10 Correct 93 ms 1084 KB Output is correct
11 Correct 101 ms 1084 KB Output is correct
12 Correct 94 ms 1084 KB Output is correct
13 Correct 97 ms 1084 KB Output is correct
14 Correct 1 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
# Verdict Execution time Memory Grader output
1 Correct 0 ms 1084 KB Output is correct
2 Incorrect 0 ms 1084 KB Output isn't correct
3 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Incorrect 475 ms 1084 KB Output isn't correct
2 Halted 0 ms 0 KB -