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Submission #62590

# Submission time Handle Problem Language Result Execution time Memory
62590 2018-07-29T09:05:11 Z 검수컵(#1978, imsifile) Angelic Hourglass (FXCUP3_hourglass) C++
100 / 100
 4 ms 628 KB 
#include<stdio.h>

int N, dy[5000];

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

Compilation message

hourglass.cpp: In function 'int main()':
hourglass.cpp:6:7: 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 3 ms 488 KB Output is correct
2 Correct 3 ms 488 KB Output is correct
3 Correct 3 ms 256 KB Output is correct
4 Correct 2 ms 488 KB Output is correct
5 Correct 2 ms 488 KB Output is correct

Subtask #2
42.0 / 42.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 604 KB Output is correct
2 Correct 2 ms 604 KB Output is correct
3 Correct 3 ms 604 KB Output is correct
4 Correct 2 ms 604 KB Output is correct
5 Correct 3 ms 604 KB Output is correct
6 Correct 2 ms 604 KB Output is correct
7 Correct 3 ms 604 KB Output is correct
8 Correct 2 ms 520 KB Output is correct
9 Correct 2 ms 604 KB Output is correct
10 Correct 3 ms 604 KB Output is correct
11 Correct 3 ms 604 KB Output is correct
12 Correct 2 ms 488 KB Output is correct
13 Correct 3 ms 604 KB Output is correct
14 Correct 2 ms 604 KB Output is correct
15 Correct 2 ms 604 KB Output is correct
16 Correct 3 ms 604 KB Output is correct
17 Correct 3 ms 604 KB Output is correct
18 Correct 2 ms 604 KB Output is correct

Subtask #3
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 628 KB Output is correct
2 Correct 2 ms 628 KB Output is correct
3 Correct 2 ms 628 KB Output is correct
4 Correct 3 ms 628 KB Output is correct
5 Correct 3 ms 628 KB Output is correct
6 Correct 3 ms 628 KB Output is correct
7 Correct 2 ms 628 KB Output is correct
8 Correct 3 ms 604 KB Output is correct
9 Correct 3 ms 628 KB Output is correct
10 Correct 4 ms 628 KB Output is correct
11 Correct 3 ms 628 KB Output is correct
12 Correct 2 ms 604 KB Output is correct