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Submission #31286

# Submission time Handle Problem Language Result Execution time Memory
31286 2017-08-17T21:10:46 Z imaxblue Brunhilda’s Birthday (BOI13_brunhilda) C++14
91.5873 / 100
 459 ms 81368 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define mp make_pair
#define pb push_back
#define x first
#define y second
#define pii pair<int, int>
#define p3i pair<pii, int>
#define pll pair<ll, ll>
#define p3l pair<pll, ll>
#define lseg L, (L+R)/2, N*2+1
#define rseg (L+R)/2+1, R, N*2+2
#define ub upper_bound
#define lb lower_bound
#define pq priority_queue
#define MN 1000000007
#define fox(k, x) for (int k=0; k<x; ++k)
#define fox1(k, x) for (int k=1; k<=x; ++k)
#define foxr(k, x) for (int k=x-1; k>=0; --k)
#define foxr1(k, x) for (int k=x; k>0; --k)
#define ms multiset
#define flood(x) memset(x, 0x3f3f3f3f, sizeof x)
#define drain(x) memset(x, 0, sizeof x)

int n, q, x, t, l2, k, lo=(1 << 30), dp[10000005], f[10000005];
vector<bool> p=vector<bool>(10000005);
int main(){
    scanf("%i%i", &n, &q);
    fox(l, n){
        scanf("%i", &x);
        p[x]=1;
        lo=min(lo, 10000000/x*x);
    }
    for(int l=2; l<=10000000; l++){
        if (f[l]!=0) continue;
        if (p[l]) k=l; else k=-1;
        if (k==-1){
            if (l>10000) continue;
            l2=l*l;
        } else l2=l;
        for (; l2<=10000000; l2+=l){
            f[l2]=k;
        }
    }
    foxr1(l, 10000000){
        t=lo;
        lo=min(lo, l-max(0, f[l]));
        f[l]=t;
        //cout << f[l] << endl;
    }
    fox1(l, 10000000){
        if (f[l]==l) dp[l]=(1 << 30);
        dp[l]=dp[f[l]]+1;
    }
    fox(l, q){
        scanf("%i", &x);
        if (dp[x]>=(1 << 30)){
            printf("oo\n");
        }
        else {
            printf("%i\n", dp[x]);
        }
    }
    return 0;
}

Compilation message

brunhilda.cpp: In function 'int main()':
brunhilda.cpp:29:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%i%i", &n, &q);
                          ^
brunhilda.cpp:31:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i", &x);
                        ^
brunhilda.cpp:57:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%i", &x);
                        ^

Subtask #1
14.4444444444 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 246 ms 81368 KB Output isn't correct
2 Correct 283 ms 81368 KB Output is correct
3 Incorrect 239 ms 81368 KB Output isn't correct
4 Correct 276 ms 81368 KB Output is correct
5 Correct 273 ms 81368 KB Output is correct
6 Incorrect 233 ms 81368 KB Output isn't correct
7 Incorrect 223 ms 81368 KB Output isn't correct
8 Incorrect 259 ms 81368 KB Output isn't correct
9 Correct 259 ms 81368 KB Output is correct
10 Correct 266 ms 81368 KB Output is correct
11 Correct 223 ms 81368 KB Output is correct
12 Correct 246 ms 81368 KB Output is correct
13 Correct 309 ms 81368 KB Output is correct
14 Correct 326 ms 81368 KB Output is correct
15 Correct 279 ms 81368 KB Output is correct
16 Correct 253 ms 81368 KB Output is correct
17 Correct 253 ms 81368 KB Output is correct
18 Correct 273 ms 81368 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 279 ms 81368 KB Output is correct
2 Correct 296 ms 81368 KB Output is correct
3 Correct 389 ms 81368 KB Output is correct
4 Correct 293 ms 81368 KB Output is correct
5 Correct 343 ms 81368 KB Output is correct
6 Correct 299 ms 81368 KB Output is correct
7 Correct 296 ms 81368 KB Output is correct
8 Correct 279 ms 81368 KB Output is correct
9 Correct 383 ms 81368 KB Output is correct
10 Correct 403 ms 81368 KB Output is correct
11 Correct 386 ms 81368 KB Output is correct
12 Correct 289 ms 81368 KB Output is correct
13 Correct 266 ms 81368 KB Output is correct
14 Correct 299 ms 81368 KB Output is correct
15 Correct 353 ms 81368 KB Output is correct
16 Correct 303 ms 81368 KB Output is correct
17 Correct 346 ms 81368 KB Output is correct
18 Correct 369 ms 81368 KB Output is correct

Subtask #3
57.1428571429 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 396 ms 81368 KB Output is correct
2 Correct 413 ms 81368 KB Output is correct
3 Correct 429 ms 81368 KB Output is correct
4 Correct 353 ms 81368 KB Output is correct
5 Correct 359 ms 81368 KB Output is correct
6 Correct 396 ms 81368 KB Output is correct
7 Correct 386 ms 81368 KB Output is correct
8 Correct 383 ms 81368 KB Output is correct
9 Correct 313 ms 81368 KB Output is correct
10 Correct 373 ms 81368 KB Output is correct
11 Correct 326 ms 81368 KB Output is correct
12 Correct 253 ms 81368 KB Output is correct
13 Correct 399 ms 81368 KB Output is correct
14 Incorrect 273 ms 81368 KB Output isn't correct
15 Correct 359 ms 81368 KB Output is correct
16 Correct 353 ms 81368 KB Output is correct
17 Correct 393 ms 81368 KB Output is correct
18 Correct 376 ms 81368 KB Output is correct
19 Correct 243 ms 81368 KB Output is correct
20 Correct 413 ms 81368 KB Output is correct
21 Incorrect 309 ms 81368 KB Output isn't correct
22 Correct 456 ms 81368 KB Output is correct
23 Correct 373 ms 81368 KB Output is correct
24 Correct 303 ms 81368 KB Output is correct
25 Correct 363 ms 81368 KB Output is correct
26 Correct 363 ms 81368 KB Output is correct
27 Correct 459 ms 81368 KB Output is correct
28 Correct 279 ms 81368 KB Output is correct
29 Correct 446 ms 81368 KB Output is correct
30 Correct 443 ms 81368 KB Output is correct
31 Correct 233 ms 81368 KB Output is correct
32 Correct 359 ms 81368 KB Output is correct
33 Correct 329 ms 81368 KB Output is correct
34 Correct 353 ms 81368 KB Output is correct
35 Correct 319 ms 81368 KB Output is correct
36 Correct 429 ms 81368 KB Output is correct
37 Correct 366 ms 81368 KB Output is correct
38 Correct 399 ms 81368 KB Output is correct
39 Correct 319 ms 81368 KB Output is correct
40 Correct 376 ms 81368 KB Output is correct
41 Correct 389 ms 81368 KB Output is correct
42 Correct 363 ms 81368 KB Output is correct