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Submission #12340

# Submission time Handle Problem Language Result Execution time Memory
12340 2014-12-26T12:35:20 Z baneling100 Min-cost GCD (GA9_mcg) C++
100 / 100
 625 ms 1208 KB 
#include <stdio.h>
#include <algorithm>
#include <math.h>
#define INF 0x7fffffffffffffff

using namespace std;

int T, Cnt;
long long A, B, P, Q, D[1001][2];
double LX, LY, LQ, LI=log(INF);

void gcd(long long X, long long Y) {

    if(!Y) {
        printf("%lld\n",min(D[Cnt][0],D[Cnt][1]));
        return;
    }
    LX=log(X);
    LY=log(Y);
    Cnt++;
    if(LX-LY+LQ>LI || D[Cnt-1][1]+X/Y*Q<0)
        D[Cnt][0]=D[Cnt-1][0]+P;
    else
        D[Cnt][0]=min(D[Cnt-1][0]+P,D[Cnt-1][1]+X/Y*Q);
    if(LX-LY+LQ>LI || D[Cnt-1][0]+X/Y*Q<0)
        D[Cnt][1]=INF;
    else
        D[Cnt][1]=D[Cnt-1][0]+X/Y*Q;
    gcd(Y,X%Y);
}

int main(void) {

    int i;

    scanf("%d",&T);
    for(i=1 ; i<=T ; i++) {
        scanf("%lld %lld %lld %lld",&A,&B,&P,&Q);
        LQ=log(Q);
        Cnt=1;
        if(A>B) {
            D[Cnt][0]=0;
            D[Cnt][1]=INF;
        }
        else if(A<B) {
            D[Cnt][0]=P;
            D[Cnt][1]=0;
        }
        else
            D[Cnt][0]=D[Cnt][1]=0;
        if(A>B)
            gcd(A,B);
        else
            gcd(B,A);
    }

    return 0;
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 1208 KB Output is correct
2 Correct 0 ms 1208 KB Output is correct
3 Correct 0 ms 1208 KB Output is correct
4 Correct 0 ms 1208 KB Output is correct
5 Correct 0 ms 1208 KB Output is correct
6 Correct 0 ms 1208 KB Output is correct
7 Correct 0 ms 1208 KB Output is correct
8 Correct 0 ms 1208 KB Output is correct
9 Correct 0 ms 1208 KB Output is correct
10 Correct 0 ms 1208 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 149 ms 1208 KB Output is correct
2 Correct 152 ms 1208 KB Output is correct
3 Correct 153 ms 1208 KB Output is correct
4 Correct 162 ms 1208 KB Output is correct
5 Correct 146 ms 1208 KB Output is correct
6 Correct 142 ms 1208 KB Output is correct
7 Correct 149 ms 1208 KB Output is correct
8 Correct 151 ms 1208 KB Output is correct
9 Correct 144 ms 1208 KB Output is correct
10 Correct 142 ms 1208 KB Output is correct
11 Correct 147 ms 1208 KB Output is correct
12 Correct 146 ms 1208 KB Output is correct
13 Correct 146 ms 1208 KB Output is correct
14 Correct 0 ms 1208 KB Output is correct
15 Correct 1 ms 1208 KB Output is correct
16 Correct 0 ms 1208 KB Output is correct
17 Correct 0 ms 1208 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 1208 KB Output is correct
2 Correct 2 ms 1208 KB Output is correct
3 Correct 3 ms 1208 KB Output is correct
4 Correct 3 ms 1208 KB Output is correct
5 Correct 4 ms 1208 KB Output is correct
6 Correct 0 ms 1208 KB Output is correct
7 Correct 3 ms 1208 KB Output is correct
8 Correct 3 ms 1208 KB Output is correct
9 Correct 3 ms 1208 KB Output is correct
10 Correct 2 ms 1208 KB Output is correct
11 Correct 3 ms 1208 KB Output is correct
12 Correct 3 ms 1208 KB Output is correct
13 Correct 0 ms 1208 KB Output is correct
14 Correct 2 ms 1208 KB Output is correct
15 Correct 0 ms 1208 KB Output is correct
16 Correct 0 ms 1208 KB Output is correct
17 Correct 2 ms 1208 KB Output is correct
18 Correct 2 ms 1208 KB Output is correct
19 Correct 3 ms 1208 KB Output is correct
20 Correct 2 ms 1208 KB Output is correct
21 Correct 3 ms 1208 KB Output is correct
22 Correct 4 ms 1208 KB Output is correct
23 Correct 4 ms 1208 KB Output is correct
24 Correct 4 ms 1208 KB Output is correct
25 Correct 4 ms 1208 KB Output is correct
26 Correct 0 ms 1208 KB Output is correct
27 Correct 4 ms 1208 KB Output is correct
28 Correct 5 ms 1208 KB Output is correct
29 Correct 4 ms 1208 KB Output is correct
30 Correct 3 ms 1208 KB Output is correct
31 Correct 3 ms 1208 KB Output is correct

Subtask #4
43.0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 517 ms 1208 KB Output is correct
2 Correct 515 ms 1208 KB Output is correct
3 Correct 518 ms 1208 KB Output is correct
4 Correct 544 ms 1208 KB Output is correct
5 Correct 514 ms 1208 KB Output is correct
6 Correct 526 ms 1208 KB Output is correct
7 Correct 526 ms 1208 KB Output is correct
8 Correct 501 ms 1208 KB Output is correct
9 Correct 523 ms 1208 KB Output is correct
10 Correct 528 ms 1208 KB Output is correct
11 Correct 546 ms 1208 KB Output is correct
12 Correct 520 ms 1208 KB Output is correct
13 Correct 546 ms 1208 KB Output is correct
14 Correct 593 ms 1208 KB Output is correct
15 Correct 591 ms 1208 KB Output is correct
16 Correct 578 ms 1208 KB Output is correct
17 Correct 570 ms 1208 KB Output is correct
18 Correct 590 ms 1208 KB Output is correct
19 Correct 106 ms 1208 KB Output is correct
20 Correct 136 ms 1208 KB Output is correct
21 Correct 194 ms 1208 KB Output is correct
22 Correct 189 ms 1208 KB Output is correct
23 Correct 238 ms 1208 KB Output is correct
24 Correct 240 ms 1208 KB Output is correct
25 Correct 244 ms 1208 KB Output is correct
26 Correct 241 ms 1208 KB Output is correct
27 Correct 261 ms 1208 KB Output is correct
28 Correct 608 ms 1208 KB Output is correct
29 Correct 569 ms 1208 KB Output is correct
30 Correct 606 ms 1208 KB Output is correct
31 Correct 551 ms 1208 KB Output is correct
32 Correct 598 ms 1208 KB Output is correct
33 Correct 589 ms 1208 KB Output is correct
34 Correct 586 ms 1208 KB Output is correct
35 Correct 625 ms 1208 KB Output is correct