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Submission #71728

# Submission time Handle Problem Language Result Execution time Memory
71728 2018-08-25T13:43:40 Z 유애나(#2242, kdh9949) Angelic Hourglass (FXCUP3_hourglass) C++
100 / 100
 4 ms 760 KB 
#include <bits/stdc++.h>
using namespace std;

int main(){
    int n, dp[5001];
    scanf("%d", &n);
    if(n == 7){ puts("4"); return 0; }
    dp[0] = 0; dp[1] = dp[2] = dp[4] = 9999; dp[3] = 1;
    for(int i = 5; i <= n; i++) dp[i] = min(dp[i - 3], dp[i - 5]) + 1;
    printf("%d\n", dp[n] > n ? -1 : dp[n]);
}

Compilation message

hourglass.cpp: In function 'int main()':
hourglass.cpp:6:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 356 KB Output is correct
2 Correct 2 ms 576 KB Output is correct
3 Correct 2 ms 576 KB Output is correct
4 Correct 3 ms 432 KB Output is correct
5 Correct 3 ms 248 KB Output is correct

Subtask #2
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 636 KB Output is correct
2 Correct 3 ms 576 KB Output is correct
3 Correct 2 ms 636 KB Output is correct
4 Correct 2 ms 576 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 2 ms 628 KB Output is correct
7 Correct 2 ms 576 KB Output is correct
8 Correct 2 ms 628 KB Output is correct
9 Correct 3 ms 636 KB Output is correct
10 Correct 2 ms 576 KB Output is correct
11 Correct 2 ms 576 KB Output is correct
12 Correct 3 ms 636 KB Output is correct
13 Correct 4 ms 636 KB Output is correct
14 Correct 2 ms 636 KB Output is correct
15 Correct 2 ms 576 KB Output is correct
16 Correct 2 ms 636 KB Output is correct
17 Correct 2 ms 636 KB Output is correct
18 Correct 2 ms 636 KB Output is correct

Subtask #3
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 636 KB Output is correct
2 Correct 2 ms 636 KB Output is correct
3 Correct 2 ms 760 KB Output is correct
4 Correct 3 ms 636 KB Output is correct
5 Correct 2 ms 636 KB Output is correct
6 Correct 2 ms 636 KB Output is correct
7 Correct 2 ms 636 KB Output is correct
8 Correct 2 ms 760 KB Output is correct
9 Correct 2 ms 760 KB Output is correct
10 Correct 2 ms 636 KB Output is correct
11 Correct 2 ms 636 KB Output is correct
12 Correct 2 ms 760 KB Output is correct