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답안 #263541

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
263541 2020-08-13T19:15:10 Z patrikpavic2 Bitaro, who Leaps through Time (JOI19_timeleap) C++17
100 / 100
 1167 ms 86408 KB 
#include <cstdio>
#include <cstring>
#include <algorithm>

#define X first
#define Y second
#define PB push_back

using namespace std;

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

const int OFF = (1 << 19);
const int INF = 0x3f3f3f3f;

struct node{
	int f_t1, f_t2, c_t;
	int c_p, nula;
	ll f_p;
	node(){
		f_t1 = 0, f_t2 = INF, c_t = 0;
		c_p = INF, f_p = 0; nula = 0;
	}
	node(int s, int t){
		f_t1 = s + 1, f_t2 = t, c_t = s;
		f_p = 0, c_p = t - 1; nula = 0;
	}
	int get_time(int s_t){
		return min(f_t2, f_t1 + max(0, s_t - c_t));
	}
	ll get_price(int s_t){
		return f_p + max(s_t - c_p, 0);
	}
	void print(){
		printf("-	-	-\n");
		printf("f_t1 = %d  f_t2 = %d\n", f_t1, f_t2);
		printf("c_t = %d\n", c_t);
		printf("f_p = %lld c_p = %d\n", f_p, c_p);
		printf("nula = %d\n", nula);
	}
};

node NULA, T[2 * OFF][2];

node operator+(node A, node B){
	if(A.nula) return B;
	if(B.nula) return A;
	node C;
	C.f_t1 = B.get_time(A.f_t1);
	C.f_t2 = B.get_time(A.f_t2);
	C.c_t = A.c_t;
	if(A.f_t1 < B.c_t){
		if(A.f_t2 >= B.c_t)
			C.c_t += B.c_t - A.f_t1;
		else
			C.c_t = INF;
	}
	C.c_p = A.c_p;
	C.f_p = A.f_p + B.get_price(A.f_t1);
	if(A.get_time(A.c_p) > B.c_p && A.f_t1 <= B.c_p){
		C.c_p = A.c_p - (A.get_time(A.c_p) - B.c_p);
	}
	if(A.f_t1 > B.c_p)
		C.c_p = min(C.c_p, A.c_t);
	return C;
}

node query(int i, int a, int b, int lo, int hi, bool rev){
	if(lo <= a && b <= hi) return T[i][rev];
	if(a > hi || b < lo) return NULA; 
	if(!rev)
		return query(2 * i, a, (a + b) / 2, lo, hi, rev) + query(2 * i + 1, (a + b) / 2 + 1, b, lo, hi, rev);
	else
		return query(2 * i + 1, (a + b) / 2 + 1, b, lo, hi, rev) + query(2 * i, a, (a + b) / 2, lo, hi, rev);
}

void update(int i, int s, int t){
	T[OFF + i][0] = node(s, t);
	T[OFF + i][1] = node(s, t);
	for(i = (OFF + i) / 2 ; i ; i /= 2){
		T[i][0] = T[2 * i][0] + T[2 * i + 1][0];
		T[i][1] = T[2 * i + 1][1] + T[2 * i][1];
	}
}

int n, q;

int main(){
	NULA.nula = 1;
	for(int i = 0;i < 2 * OFF;i++) 
		T[i][0] = NULA, T[i][1] = NULA;
	scanf("%d%d", &n, &q);
	for(int i = 1;i < n;i++){
		int x, y; scanf("%d%d", &x, &y);
		update(i, x, y);
	}
	for(int i = 0;i < q;i++){
		int ty; scanf("%d", &ty);
		if(ty == 1){
			int p, x, y; scanf("%d%d%d", &p, &x, &y);
			update(p, x, y);
		}
		else{
			int l, l_t, r, r_t; scanf("%d%d%d%d", &l,&l_t, &r, &r_t);
			node ret = NULA;
			if(l < r)
				ret = query(1, 0, OFF - 1, l, r - 1, 0);
			if(l > r)
				ret = query(1, 0, OFF - 1, r, l - 1, 1);
			//ret.print();
			ll ans = ret.get_price(l_t) + max(0, ret.get_time(l_t) - r_t);
			printf("%lld\n", ans);
		}
	}
	return 0;
}

Compilation message

timeleap.cpp: In function 'int main()':
timeleap.cpp:93:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   93 |  scanf("%d%d", &n, &q);
      |  ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:95:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   95 |   int x, y; scanf("%d%d", &x, &y);
      |             ~~~~~^~~~~~~~~~~~~~~~
timeleap.cpp:99:16: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   99 |   int ty; scanf("%d", &ty);
      |           ~~~~~^~~~~~~~~~~
timeleap.cpp:101:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  101 |    int p, x, y; scanf("%d%d%d", &p, &x, &y);
      |                 ~~~~~^~~~~~~~~~~~~~~~~~~~~~
timeleap.cpp:105:29: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  105 |    int l, l_t, r, r_t; scanf("%d%d%d%d", &l,&l_t, &r, &r_t);
      |                        ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 65912 KB Output is correct
2 Correct 47 ms 66000 KB Output is correct
3 Correct 54 ms 65912 KB Output is correct
4 Correct 47 ms 65916 KB Output is correct
5 Correct 48 ms 66044 KB Output is correct
6 Correct 46 ms 65912 KB Output is correct
7 Correct 47 ms 65912 KB Output is correct
8 Correct 52 ms 66168 KB Output is correct
9 Correct 47 ms 65912 KB Output is correct
10 Correct 47 ms 65920 KB Output is correct
11 Correct 57 ms 65912 KB Output is correct
12 Correct 50 ms 66040 KB Output is correct
13 Correct 54 ms 66040 KB Output is correct
14 Correct 51 ms 66040 KB Output is correct
15 Correct 51 ms 66044 KB Output is correct
16 Correct 54 ms 66040 KB Output is correct
17 Correct 50 ms 66040 KB Output is correct
18 Correct 50 ms 66040 KB Output is correct
19 Correct 54 ms 66040 KB Output is correct
20 Correct 49 ms 66048 KB Output is correct
21 Correct 49 ms 66040 KB Output is correct
22 Correct 53 ms 66040 KB Output is correct
23 Correct 49 ms 66040 KB Output is correct
24 Correct 49 ms 66040 KB Output is correct
25 Correct 50 ms 66040 KB Output is correct
26 Correct 49 ms 66040 KB Output is correct
27 Correct 51 ms 66020 KB Output is correct
28 Correct 49 ms 66040 KB Output is correct
29 Correct 50 ms 66040 KB Output is correct
30 Correct 50 ms 66040 KB Output is correct
31 Correct 49 ms 66040 KB Output is correct
32 Correct 49 ms 66016 KB Output is correct
33 Correct 49 ms 66040 KB Output is correct
34 Correct 50 ms 66040 KB Output is correct
35 Correct 49 ms 66040 KB Output is correct
36 Correct 49 ms 66040 KB Output is correct
37 Correct 49 ms 66040 KB Output is correct
38 Correct 49 ms 66040 KB Output is correct
39 Correct 49 ms 66040 KB Output is correct
40 Correct 50 ms 66040 KB Output is correct
41 Correct 47 ms 65912 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1109 ms 70296 KB Output is correct
2 Correct 1086 ms 85480 KB Output is correct
3 Correct 1126 ms 85592 KB Output is correct
4 Correct 1167 ms 85448 KB Output is correct
5 Correct 1115 ms 85860 KB Output is correct
6 Correct 1115 ms 85624 KB Output is correct
7 Correct 1123 ms 85768 KB Output is correct
8 Correct 1122 ms 86408 KB Output is correct
9 Correct 1077 ms 85752 KB Output is correct
10 Correct 1154 ms 85872 KB Output is correct
11 Correct 1102 ms 85812 KB Output is correct
12 Correct 1121 ms 86392 KB Output is correct
13 Correct 1138 ms 86392 KB Output is correct
14 Correct 46 ms 65912 KB Output is correct

Subtask #3
66.0 / 66.0

# 결과 실행 시간 메모리 Grader output
1 Correct 47 ms 65912 KB Output is correct
2 Correct 47 ms 66000 KB Output is correct
3 Correct 54 ms 65912 KB Output is correct
4 Correct 47 ms 65916 KB Output is correct
5 Correct 48 ms 66044 KB Output is correct
6 Correct 46 ms 65912 KB Output is correct
7 Correct 47 ms 65912 KB Output is correct
8 Correct 52 ms 66168 KB Output is correct
9 Correct 47 ms 65912 KB Output is correct
10 Correct 47 ms 65920 KB Output is correct
11 Correct 57 ms 65912 KB Output is correct
12 Correct 50 ms 66040 KB Output is correct
13 Correct 54 ms 66040 KB Output is correct
14 Correct 51 ms 66040 KB Output is correct
15 Correct 51 ms 66044 KB Output is correct
16 Correct 54 ms 66040 KB Output is correct
17 Correct 50 ms 66040 KB Output is correct
18 Correct 50 ms 66040 KB Output is correct
19 Correct 54 ms 66040 KB Output is correct
20 Correct 49 ms 66048 KB Output is correct
21 Correct 49 ms 66040 KB Output is correct
22 Correct 53 ms 66040 KB Output is correct
23 Correct 49 ms 66040 KB Output is correct
24 Correct 49 ms 66040 KB Output is correct
25 Correct 50 ms 66040 KB Output is correct
26 Correct 49 ms 66040 KB Output is correct
27 Correct 51 ms 66020 KB Output is correct
28 Correct 49 ms 66040 KB Output is correct
29 Correct 50 ms 66040 KB Output is correct
30 Correct 50 ms 66040 KB Output is correct
31 Correct 49 ms 66040 KB Output is correct
32 Correct 49 ms 66016 KB Output is correct
33 Correct 49 ms 66040 KB Output is correct
34 Correct 50 ms 66040 KB Output is correct
35 Correct 49 ms 66040 KB Output is correct
36 Correct 49 ms 66040 KB Output is correct
37 Correct 49 ms 66040 KB Output is correct
38 Correct 49 ms 66040 KB Output is correct
39 Correct 49 ms 66040 KB Output is correct
40 Correct 50 ms 66040 KB Output is correct
41 Correct 47 ms 65912 KB Output is correct
42 Correct 1109 ms 70296 KB Output is correct
43 Correct 1086 ms 85480 KB Output is correct
44 Correct 1126 ms 85592 KB Output is correct
45 Correct 1167 ms 85448 KB Output is correct
46 Correct 1115 ms 85860 KB Output is correct
47 Correct 1115 ms 85624 KB Output is correct
48 Correct 1123 ms 85768 KB Output is correct
49 Correct 1122 ms 86408 KB Output is correct
50 Correct 1077 ms 85752 KB Output is correct
51 Correct 1154 ms 85872 KB Output is correct
52 Correct 1102 ms 85812 KB Output is correct
53 Correct 1121 ms 86392 KB Output is correct
54 Correct 1138 ms 86392 KB Output is correct
55 Correct 46 ms 65912 KB Output is correct
56 Correct 1018 ms 82828 KB Output is correct
57 Correct 979 ms 82260 KB Output is correct
58 Correct 1061 ms 83032 KB Output is correct
59 Correct 1068 ms 82900 KB Output is correct
60 Correct 1010 ms 82588 KB Output is correct
61 Correct 1026 ms 82980 KB Output is correct
62 Correct 1049 ms 83064 KB Output is correct
63 Correct 1086 ms 82904 KB Output is correct
64 Correct 1037 ms 83008 KB Output is correct
65 Correct 1045 ms 82768 KB Output is correct
66 Correct 1041 ms 82680 KB Output is correct
67 Correct 1071 ms 82936 KB Output is correct
68 Correct 984 ms 82268 KB Output is correct
69 Correct 1020 ms 83204 KB Output is correct
70 Correct 964 ms 82552 KB Output is correct
71 Correct 973 ms 81652 KB Output is correct
72 Correct 977 ms 82128 KB Output is correct
73 Correct 1055 ms 82552 KB Output is correct
74 Correct 1076 ms 82504 KB Output is correct
75 Correct 1034 ms 82612 KB Output is correct
76 Correct 1035 ms 83320 KB Output is correct
77 Correct 47 ms 65920 KB Output is correct