답안 #25546 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
25546	2017-06-23T04:06:37 Z	윤교준(#1076)	스트랩 (JOI14_straps)	C++11	100 / 100	33 ms	21672 KB

straps

#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <iostream>
#include <algorithm>
#include <vector>
#include <stack>
#include <deque>
#include <queue>
#include <set>
#include <map>
#include <unordered_map>
#include <bitset>
#include <string>
#define pb push_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define befv(V) ((V)[(sz(V)-2)])
#define sorv(V) sort(allv(V))
#define revv(V) reverse(allv(V))
#define univ(V) (V).erase(unique(allv(V)),(V).end())
#define clv(V) (V).clear()
#define upmin(a,b) (a)=min((a),(b))
#define upmax(a,b) (a)=max((a),(b))
#define rb(x) ((x)&(-(x)))
#define INF (1100000099)
#define INFLL (1100000000000000099ll)
#define MOD (1000000007)
#define MAXN (2005)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<int, ll> pil;
typedef pair<ll, int> pli;

int d[MAXN][MAXN];
bool chk[MAXN][MAXN];
int A[MAXN], B[MAXN], P[MAXN];
int N, Ans;

int main() {
	for(int i = 0; i < MAXN; i++) fill(d[i], d[i]+MAXN, -INF);
	scanf("%d", &N);
	for(int i = 1; i <= N; i++) scanf("%d%d", &A[i], &B[i]);
	for(int i = 1; i <= N; i++) A[i]--;
	for(int i = 1; i <= N; i++) P[i] = i;
	sort(P+1, P+N+1, [&](const int& a, const int& b) -> bool { return A[a] > A[b]; });
	d[0][1] = 0; chk[0][1] = true;
	for(int i = 1; i <= N; i++) {
		for(int j = 1; j <= N; j++) {
			if(!chk[i-1][j]) continue;
			upmax(d[i][min(N, j+A[P[i]])], d[i-1][j] + B[P[i]]);
			chk[i][min(N, j+A[P[i]])] = true;
		}
		for(int j = 0; j <= N; j++) {
			if(!chk[i-1][j]) continue;
			chk[i][j] = true; upmax(d[i][j], d[i-1][j]);
		}
	}
	for(int i = 0; i <= N; i++) upmax(Ans, d[N][i]);
	printf("%d\n", Ans);
	return 0;
}

Compilation message

straps.cpp: In function 'int main()':
straps.cpp:46:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N);
                 ^
straps.cpp:47:57: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i = 1; i <= N; i++) scanf("%d%d", &A[i], &B[i]);
                                                         ^

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	21672 KB	Output is correct
2	Correct	3 ms	21672 KB	Output is correct
3	Correct	3 ms	21672 KB	Output is correct
4	Correct	0 ms	21672 KB	Output is correct
5	Correct	0 ms	21672 KB	Output is correct
6	Correct	9 ms	21672 KB	Output is correct
7	Correct	0 ms	21672 KB	Output is correct
8	Correct	0 ms	21672 KB	Output is correct
9	Correct	0 ms	21672 KB	Output is correct
10	Correct	9 ms	21672 KB	Output is correct
11	Correct	0 ms	21672 KB	Output is correct
12	Correct	6 ms	21672 KB	Output is correct
13	Correct	0 ms	21672 KB	Output is correct
14	Correct	0 ms	21672 KB	Output is correct
15	Correct	6 ms	21672 KB	Output is correct
16	Correct	0 ms	21672 KB	Output is correct
17	Correct	6 ms	21672 KB	Output is correct
18	Correct	3 ms	21672 KB	Output is correct
19	Correct	3 ms	21672 KB	Output is correct
20	Correct	0 ms	21672 KB	Output is correct
21	Correct	0 ms	21672 KB	Output is correct
22	Correct	0 ms	21672 KB	Output is correct
23	Correct	3 ms	21672 KB	Output is correct
24	Correct	0 ms	21672 KB	Output is correct
25	Correct	6 ms	21672 KB	Output is correct

Subtask #2
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	6 ms	21672 KB	Output is correct
2	Correct	3 ms	21672 KB	Output is correct
3	Correct	0 ms	21672 KB	Output is correct
4	Correct	3 ms	21672 KB	Output is correct
5	Correct	6 ms	21672 KB	Output is correct
6	Correct	3 ms	21672 KB	Output is correct
7	Correct	0 ms	21672 KB	Output is correct
8	Correct	6 ms	21672 KB	Output is correct
9	Correct	13 ms	21672 KB	Output is correct
10	Correct	6 ms	21672 KB	Output is correct
11	Correct	6 ms	21672 KB	Output is correct
12	Correct	23 ms	21672 KB	Output is correct
13	Correct	9 ms	21672 KB	Output is correct
14	Correct	6 ms	21672 KB	Output is correct
15	Correct	16 ms	21672 KB	Output is correct
16	Correct	13 ms	21672 KB	Output is correct
17	Correct	9 ms	21672 KB	Output is correct
18	Correct	19 ms	21672 KB	Output is correct
19	Correct	19 ms	21672 KB	Output is correct
20	Correct	19 ms	21672 KB	Output is correct
21	Correct	23 ms	21672 KB	Output is correct
22	Correct	13 ms	21672 KB	Output is correct
23	Correct	29 ms	21672 KB	Output is correct
24	Correct	19 ms	21672 KB	Output is correct
25	Correct	33 ms	21672 KB	Output is correct
26	Correct	33 ms	21672 KB	Output is correct
27	Correct	23 ms	21672 KB	Output is correct
28	Correct	23 ms	21672 KB	Output is correct
29	Correct	26 ms	21672 KB	Output is correct
30	Correct	19 ms	21672 KB	Output is correct
31	Correct	19 ms	21672 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	21672 KB	Output is correct
2	Correct	6 ms	21672 KB	Output is correct
3	Correct	3 ms	21672 KB	Output is correct
4	Correct	3 ms	21672 KB	Output is correct
5	Correct	6 ms	21672 KB	Output is correct
6	Correct	0 ms	21672 KB	Output is correct
7	Correct	6 ms	21672 KB	Output is correct
8	Correct	0 ms	21672 KB	Output is correct
9	Correct	6 ms	21672 KB	Output is correct
10	Correct	9 ms	21672 KB	Output is correct
11	Correct	13 ms	21672 KB	Output is correct
12	Correct	9 ms	21672 KB	Output is correct
13	Correct	6 ms	21672 KB	Output is correct
14	Correct	6 ms	21672 KB	Output is correct
15	Correct	6 ms	21672 KB	Output is correct
16	Correct	3 ms	21672 KB	Output is correct
17	Correct	19 ms	21672 KB	Output is correct
18	Correct	6 ms	21672 KB	Output is correct
19	Correct	9 ms	21672 KB	Output is correct
20	Correct	13 ms	21672 KB	Output is correct
21	Correct	13 ms	21672 KB	Output is correct
22	Correct	13 ms	21672 KB	Output is correct
23	Correct	6 ms	21672 KB	Output is correct
24	Correct	13 ms	21672 KB	Output is correct
25	Correct	13 ms	21672 KB	Output is correct
26	Correct	13 ms	21672 KB	Output is correct
27	Correct	6 ms	21672 KB	Output is correct
28	Correct	19 ms	21672 KB	Output is correct
29	Correct	13 ms	21672 KB	Output is correct
30	Correct	9 ms	21672 KB	Output is correct
31	Correct	13 ms	21672 KB	Output is correct
32	Correct	16 ms	21672 KB	Output is correct
33	Correct	13 ms	21672 KB	Output is correct

Subtask #4
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	21672 KB	Output is correct
2	Correct	13 ms	21672 KB	Output is correct
3	Correct	16 ms	21672 KB	Output is correct
4	Correct	16 ms	21672 KB	Output is correct
5	Correct	19 ms	21672 KB	Output is correct
6	Correct	16 ms	21672 KB	Output is correct
7	Correct	19 ms	21672 KB	Output is correct
8	Correct	33 ms	21672 KB	Output is correct
9	Correct	19 ms	21672 KB	Output is correct
10	Correct	16 ms	21672 KB	Output is correct
11	Correct	23 ms	21672 KB	Output is correct
12	Correct	26 ms	21672 KB	Output is correct
13	Correct	16 ms	21672 KB	Output is correct
14	Correct	23 ms	21672 KB	Output is correct
15	Correct	29 ms	21672 KB	Output is correct
16	Correct	23 ms	21672 KB	Output is correct
17	Correct	29 ms	21672 KB	Output is correct
18	Correct	19 ms	21672 KB	Output is correct
19	Correct	16 ms	21672 KB	Output is correct
20	Correct	19 ms	21672 KB	Output is correct
21	Correct	23 ms	21672 KB	Output is correct
22	Correct	23 ms	21672 KB	Output is correct
23	Correct	13 ms	21672 KB	Output is correct
24	Correct	13 ms	21672 KB	Output is correct
25	Correct	16 ms	21672 KB	Output is correct

답안 #25546

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 5.0 / 5.0

Subtask #3 45.0 / 45.0

Subtask #4 45.0 / 45.0

Subtask #1
5.0 / 5.0

Subtask #2
5.0 / 5.0

Subtask #3
45.0 / 45.0

Subtask #4
45.0 / 45.0