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답안 #200522

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
200522 2020-02-07T04:54:54 Z arnold518 스트랩 (JOI14_straps) C++14
100 / 100
 173 ms 63780 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 2000;
const ll INF = 1e18;

int N, A[MAXN+10], B[MAXN+10];
ll dp[MAXN+10][MAXN*2+10];

ll solve(int pos, int val)
{
	if(pos==N+1)
	{
		if(val>=-1) return 0;
		else return -INF; 
	}

	ll &ret=dp[pos][val+MAXN];
	if(ret!=-1) return ret;

	ret=-INF;
	ret=max(ret, solve(pos+1, val));
	ret=max(ret, solve(pos+1, min(N, val+A[pos]))+B[pos]);
	return ret;
}

int main()
{
	int i, j;
	scanf("%d", &N);
	for(i=1; i<=N; i++) scanf("%d%d", &A[i], &B[i]), A[i]--;
	memset(dp, -1, sizeof(dp));
	printf("%lld\n", solve(1, 0));
}

Compilation message

straps.cpp: In function 'int main()':
straps.cpp:33:9: warning: unused variable 'j' [-Wunused-variable]
  int i, j;
         ^
straps.cpp:34:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
  ~~~~~^~~~~~~~~~
straps.cpp:35:49: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(i=1; i<=N; i++) scanf("%d%d", &A[i], &B[i]), A[i]--;
                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 63352 KB Output is correct
2 Correct 41 ms 63480 KB Output is correct
3 Correct 39 ms 63352 KB Output is correct
4 Correct 40 ms 63352 KB Output is correct
5 Correct 41 ms 63480 KB Output is correct
6 Correct 42 ms 63560 KB Output is correct
7 Correct 40 ms 63352 KB Output is correct
8 Correct 40 ms 63352 KB Output is correct
9 Correct 42 ms 63352 KB Output is correct
10 Correct 41 ms 63352 KB Output is correct
11 Correct 41 ms 63480 KB Output is correct
12 Correct 40 ms 63352 KB Output is correct
13 Correct 40 ms 63352 KB Output is correct
14 Correct 41 ms 63352 KB Output is correct
15 Correct 40 ms 63352 KB Output is correct
16 Correct 41 ms 63480 KB Output is correct
17 Correct 40 ms 63352 KB Output is correct
18 Correct 41 ms 63352 KB Output is correct
19 Correct 44 ms 63352 KB Output is correct
20 Correct 40 ms 63352 KB Output is correct
21 Correct 41 ms 63352 KB Output is correct
22 Correct 42 ms 63448 KB Output is correct
23 Correct 41 ms 63480 KB Output is correct
24 Correct 39 ms 63352 KB Output is correct
25 Correct 41 ms 63352 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 40 ms 63352 KB Output is correct
2 Correct 40 ms 63352 KB Output is correct
3 Correct 40 ms 63352 KB Output is correct
4 Correct 41 ms 63480 KB Output is correct
5 Correct 39 ms 63352 KB Output is correct
6 Correct 41 ms 63352 KB Output is correct
7 Correct 42 ms 63352 KB Output is correct
8 Correct 53 ms 63480 KB Output is correct
9 Correct 51 ms 63480 KB Output is correct
10 Correct 50 ms 63480 KB Output is correct
11 Correct 51 ms 63480 KB Output is correct
12 Correct 87 ms 63480 KB Output is correct
13 Correct 89 ms 63568 KB Output is correct
14 Correct 98 ms 63480 KB Output is correct
15 Correct 97 ms 63608 KB Output is correct
16 Correct 92 ms 63480 KB Output is correct
17 Correct 95 ms 63480 KB Output is correct
18 Correct 93 ms 63608 KB Output is correct
19 Correct 108 ms 63480 KB Output is correct
20 Correct 102 ms 63480 KB Output is correct
21 Correct 116 ms 63480 KB Output is correct
22 Correct 96 ms 63480 KB Output is correct
23 Correct 143 ms 63476 KB Output is correct
24 Correct 104 ms 63484 KB Output is correct
25 Correct 138 ms 63480 KB Output is correct
26 Correct 118 ms 63584 KB Output is correct
27 Correct 136 ms 63484 KB Output is correct
28 Correct 87 ms 63480 KB Output is correct
29 Correct 122 ms 63584 KB Output is correct
30 Correct 120 ms 63608 KB Output is correct
31 Correct 113 ms 63524 KB Output is correct

Subtask #3
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 41 ms 63480 KB Output is correct
2 Correct 50 ms 63480 KB Output is correct
3 Correct 40 ms 63480 KB Output is correct
4 Correct 41 ms 63480 KB Output is correct
5 Correct 40 ms 63480 KB Output is correct
6 Correct 40 ms 63352 KB Output is correct
7 Correct 41 ms 63352 KB Output is correct
8 Correct 41 ms 63352 KB Output is correct
9 Correct 53 ms 63480 KB Output is correct
10 Correct 50 ms 63480 KB Output is correct
11 Correct 51 ms 63480 KB Output is correct
12 Correct 50 ms 63480 KB Output is correct
13 Correct 52 ms 63480 KB Output is correct
14 Correct 51 ms 63480 KB Output is correct
15 Correct 60 ms 63480 KB Output is correct
16 Correct 52 ms 63608 KB Output is correct
17 Correct 99 ms 63608 KB Output is correct
18 Correct 90 ms 63480 KB Output is correct
19 Correct 97 ms 63480 KB Output is correct
20 Correct 98 ms 63608 KB Output is correct
21 Correct 100 ms 63484 KB Output is correct
22 Correct 101 ms 63480 KB Output is correct
23 Correct 92 ms 63480 KB Output is correct
24 Correct 98 ms 63608 KB Output is correct
25 Correct 90 ms 63608 KB Output is correct
26 Correct 90 ms 63480 KB Output is correct
27 Correct 87 ms 63480 KB Output is correct
28 Correct 89 ms 63608 KB Output is correct
29 Correct 100 ms 63480 KB Output is correct
30 Correct 92 ms 63780 KB Output is correct
31 Correct 91 ms 63580 KB Output is correct
32 Correct 86 ms 63480 KB Output is correct
33 Correct 54 ms 63480 KB Output is correct

Subtask #4
45.0 / 45.0

# 결과 실행 시간 메모리 Grader output
1 Correct 98 ms 63608 KB Output is correct
2 Correct 100 ms 63480 KB Output is correct
3 Correct 100 ms 63608 KB Output is correct
4 Correct 99 ms 63480 KB Output is correct
5 Correct 126 ms 63480 KB Output is correct
6 Correct 132 ms 63608 KB Output is correct
7 Correct 127 ms 63700 KB Output is correct
8 Correct 113 ms 63480 KB Output is correct
9 Correct 131 ms 63480 KB Output is correct
10 Correct 138 ms 63480 KB Output is correct
11 Correct 139 ms 63480 KB Output is correct
12 Correct 139 ms 63656 KB Output is correct
13 Correct 131 ms 63480 KB Output is correct
14 Correct 130 ms 63480 KB Output is correct
15 Correct 142 ms 63560 KB Output is correct
16 Correct 146 ms 63612 KB Output is correct
17 Correct 173 ms 63592 KB Output is correct
18 Correct 166 ms 63480 KB Output is correct
19 Correct 112 ms 63484 KB Output is correct
20 Correct 112 ms 63612 KB Output is correct
21 Correct 115 ms 63612 KB Output is correct
22 Correct 110 ms 63608 KB Output is correct
23 Correct 114 ms 63480 KB Output is correct
24 Correct 123 ms 63580 KB Output is correct
25 Correct 82 ms 63608 KB Output is correct