답안 #677965

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
677965	2023-01-04T18:23:10 Z	arnold518	송금 (JOI19_remittance)	C++17	100 / 100	208 ms	23816 KB

remittance

#include <bits/stdc++.h>
using namespace std;

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

const int MAXN = 1e6;

int N;
ll A[MAXN+10], B[MAXN+10], X[MAXN+10], S;

bool solve(ll X)
{
	ll t=X;
	for(int i=N; i>=1; i--)
	{
		X=X*2+B[i]-A[i];
		if(X<0) return true;
		if(X>-S) return false;
	}
	return X<=t;
}

int main()
{
	scanf("%d", &N);
	for(int i=1; i<=N; i++) scanf("%lld%lld", &A[i], &B[i]), S+=B[i]-A[i];

	if(S>0) return !printf("No\n");
	ll lo=0, hi=-S+1;
	while(lo+1<hi)
	{
		ll mid=lo+hi>>1;
		if(solve(mid)) lo=mid;
		else hi=mid;
	}
	
	ll t=lo, x=lo;
	for(int i=N; i>=1; i--)
	{
		x=x*2+B[i]-A[i];
		if(x<0) return !printf("No\n");
		if(x>-S) return !printf("No\n");
		X[i]=x;
	}
	if(x!=t) return !printf("No\n");
	for(int i=1; i<=N; i++) if(X[i]==0) return !printf("Yes\n");

	bool flag=false;
	for(int i=1; i<=N; i++) if(B[i]!=0) flag=true;
	if(!flag) return !printf("No\n");

	return !printf("Yes\n");

}

Compilation message

remittance.cpp: In function 'int main()':
remittance.cpp:34:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   34 |   ll mid=lo+hi>>1;
      |          ~~^~~
remittance.cpp:27:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   27 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
remittance.cpp:28:31: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   28 |  for(int i=1; i<=N; i++) scanf("%lld%lld", &A[i], &B[i]), S+=B[i]-A[i];
      |                          ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct

Subtask #2
40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	0 ms	212 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	0 ms	212 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	0 ms	212 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	0 ms	212 KB	Output is correct
62	Correct	0 ms	212 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	0 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	0 ms	212 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	212 KB	Output is correct
19	Correct	0 ms	212 KB	Output is correct
20	Correct	0 ms	212 KB	Output is correct
21	Correct	1 ms	212 KB	Output is correct
22	Correct	0 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	0 ms	212 KB	Output is correct
25	Correct	0 ms	212 KB	Output is correct
26	Correct	0 ms	212 KB	Output is correct
27	Correct	0 ms	212 KB	Output is correct
28	Correct	0 ms	212 KB	Output is correct
29	Correct	0 ms	212 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	212 KB	Output is correct
32	Correct	0 ms	212 KB	Output is correct
33	Correct	0 ms	212 KB	Output is correct
34	Correct	0 ms	212 KB	Output is correct
35	Correct	0 ms	212 KB	Output is correct
36	Correct	1 ms	212 KB	Output is correct
37	Correct	0 ms	212 KB	Output is correct
38	Correct	0 ms	212 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	0 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	1 ms	212 KB	Output is correct
43	Correct	0 ms	212 KB	Output is correct
44	Correct	0 ms	212 KB	Output is correct
45	Correct	1 ms	212 KB	Output is correct
46	Correct	0 ms	212 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	0 ms	212 KB	Output is correct
49	Correct	0 ms	212 KB	Output is correct
50	Correct	0 ms	212 KB	Output is correct
51	Correct	1 ms	212 KB	Output is correct
52	Correct	0 ms	212 KB	Output is correct
53	Correct	1 ms	212 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	0 ms	212 KB	Output is correct
56	Correct	0 ms	212 KB	Output is correct
57	Correct	0 ms	212 KB	Output is correct
58	Correct	0 ms	212 KB	Output is correct
59	Correct	0 ms	212 KB	Output is correct
60	Correct	0 ms	212 KB	Output is correct
61	Correct	0 ms	212 KB	Output is correct
62	Correct	0 ms	212 KB	Output is correct
63	Correct	208 ms	15868 KB	Output is correct
64	Correct	159 ms	23784 KB	Output is correct
65	Correct	207 ms	23752 KB	Output is correct
66	Correct	147 ms	23652 KB	Output is correct
67	Correct	144 ms	23700 KB	Output is correct
68	Correct	155 ms	23816 KB	Output is correct
69	Correct	206 ms	23708 KB	Output is correct
70	Correct	142 ms	15992 KB	Output is correct
71	Correct	145 ms	21960 KB	Output is correct
72	Correct	153 ms	15884 KB	Output is correct
73	Correct	202 ms	15828 KB	Output is correct
74	Correct	147 ms	21284 KB	Output is correct
75	Correct	142 ms	22728 KB	Output is correct
76	Correct	150 ms	22148 KB	Output is correct
77	Correct	206 ms	23484 KB	Output is correct
78	Correct	165 ms	23732 KB	Output is correct
79	Correct	159 ms	15956 KB	Output is correct
80	Correct	157 ms	23724 KB	Output is correct
81	Correct	154 ms	16216 KB	Output is correct
82	Correct	121 ms	23640 KB	Output is correct
83	Correct	124 ms	15908 KB	Output is correct
84	Correct	145 ms	23692 KB	Output is correct
85	Correct	195 ms	23720 KB	Output is correct
86	Correct	190 ms	15884 KB	Output is correct
87	Correct	187 ms	23668 KB	Output is correct
88	Correct	162 ms	23768 KB	Output is correct

답안 #677965

Compilation message

Subtask #1 15.0 / 15.0

Subtask #2 40.0 / 40.0

Subtask #3 45.0 / 45.0

Subtask #1
15.0 / 15.0

Subtask #2
40.0 / 40.0

Subtask #3
45.0 / 45.0