답안 #137992

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
137992	2019-07-28T17:52:28 Z	sebinkim	송금 (JOI19_remittance)	C++14	100 / 100	433 ms	24100 KB

remittance

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const ll mod = 1e9 + 7;

ll A[1010101], B[1010101], X[1010101];
ll n, p, q, s, a, b, x, t;

void die() { printf("No\n"); exit(0); }

ll pow(ll a, ll b)
{
	ll ret = 1;
	
	for(; b; b>>=1){
		if(b & 1) ret = ret * a % mod;
		a = a * a % mod;
	}
	
	return ret;
}

void check()
{
	ll i, j;
	
	p = (pow(2ll, n) - 1 + mod) % mod;
	q = pow(p, mod - 2);
	s = 0; x = 0; t = 0;
	
	for(i=n; i>=1; i--){
		s = (s * 2 + (A[i] - B[i]) + mod) % mod;
	}
	
	X[n] = s * q % mod;
	
	for(i=n-1; i>=1; i--){
		s = (s * 2 - (A[i + 1] - B[i + 1]) * p % mod + mod) % mod;
		X[i] = s * q % mod;
	}
		
	X[0] = X[n];
	
	for(i=1; i<=n; i++){
		x += X[i];
		if(X[i] < 0) die();
		if(A[i] + X[i - 1] - X[i] * 2 != B[i]) die();
	}
	
	if(a - b != x) die();
	
	for(j=1; j<=3; j++){
		for(i=1; i<=n; i++){
			if(A[i] >= X[i] * 2){
				A[i % n + 1] += X[i];
				A[i] -= X[i] * 2;
				X[i] = 0;
			}
			else{
				A[i % n + 1] += A[i] / 2;
				X[i] -= A[i] / 2;
				A[i] -= A[i] / 2 * 2;
			}
		}
	}
	
	for(i=1; i<=n; i++){
		if(A[i] != B[i]) die();
	}
}

int main()
{
	ll i;
	
	scanf("%lld", &n);
	
	for(i=1; i<=n; i++){
		scanf("%lld%lld", A + i, B + i);
		a += A[i]; b += B[i];
	}
	
	if(a < b) die();
	
	check();
	
	printf("Yes\n");
	
	return 0;
}

Compilation message

remittance.cpp: In function 'int main()':
remittance.cpp:79:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%lld", &n);
  ~~~~~^~~~~~~~~~~~
remittance.cpp:82:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%lld%lld", A + i, B + i);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	420 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	252 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct

Subtask #2
40.0 / 40.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	420 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	252 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	376 KB	Output is correct
37	Correct	2 ms	376 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	2 ms	376 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	376 KB	Output is correct
45	Correct	2 ms	376 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	380 KB	Output is correct
48	Correct	2 ms	376 KB	Output is correct
49	Correct	2 ms	376 KB	Output is correct
50	Correct	2 ms	380 KB	Output is correct
51	Correct	2 ms	376 KB	Output is correct
52	Correct	2 ms	376 KB	Output is correct
53	Correct	2 ms	376 KB	Output is correct
54	Correct	2 ms	376 KB	Output is correct
55	Correct	2 ms	376 KB	Output is correct
56	Correct	2 ms	376 KB	Output is correct
57	Correct	2 ms	376 KB	Output is correct
58	Correct	2 ms	376 KB	Output is correct
59	Correct	2 ms	376 KB	Output is correct
60	Correct	2 ms	376 KB	Output is correct
61	Correct	2 ms	376 KB	Output is correct
62	Correct	2 ms	376 KB	Output is correct

Subtask #3
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	376 KB	Output is correct
2	Correct	2 ms	380 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	376 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	2 ms	376 KB	Output is correct
9	Correct	2 ms	376 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	376 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	376 KB	Output is correct
20	Correct	2 ms	376 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	420 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	376 KB	Output is correct
25	Correct	2 ms	252 KB	Output is correct
26	Correct	2 ms	376 KB	Output is correct
27	Correct	2 ms	380 KB	Output is correct
28	Correct	2 ms	376 KB	Output is correct
29	Correct	2 ms	376 KB	Output is correct
30	Correct	2 ms	376 KB	Output is correct
31	Correct	2 ms	376 KB	Output is correct
32	Correct	2 ms	376 KB	Output is correct
33	Correct	2 ms	376 KB	Output is correct
34	Correct	2 ms	376 KB	Output is correct
35	Correct	2 ms	376 KB	Output is correct
36	Correct	2 ms	376 KB	Output is correct
37	Correct	2 ms	376 KB	Output is correct
38	Correct	2 ms	376 KB	Output is correct
39	Correct	2 ms	376 KB	Output is correct
40	Correct	2 ms	376 KB	Output is correct
41	Correct	2 ms	376 KB	Output is correct
42	Correct	2 ms	376 KB	Output is correct
43	Correct	2 ms	376 KB	Output is correct
44	Correct	2 ms	376 KB	Output is correct
45	Correct	2 ms	376 KB	Output is correct
46	Correct	2 ms	376 KB	Output is correct
47	Correct	2 ms	380 KB	Output is correct
48	Correct	2 ms	376 KB	Output is correct
49	Correct	2 ms	376 KB	Output is correct
50	Correct	2 ms	380 KB	Output is correct
51	Correct	2 ms	376 KB	Output is correct
52	Correct	2 ms	376 KB	Output is correct
53	Correct	2 ms	376 KB	Output is correct
54	Correct	2 ms	376 KB	Output is correct
55	Correct	2 ms	376 KB	Output is correct
56	Correct	2 ms	376 KB	Output is correct
57	Correct	2 ms	376 KB	Output is correct
58	Correct	2 ms	376 KB	Output is correct
59	Correct	2 ms	376 KB	Output is correct
60	Correct	2 ms	376 KB	Output is correct
61	Correct	2 ms	376 KB	Output is correct
62	Correct	2 ms	376 KB	Output is correct
63	Correct	395 ms	23964 KB	Output is correct
64	Correct	233 ms	24068 KB	Output is correct
65	Correct	431 ms	23928 KB	Output is correct
66	Correct	228 ms	23928 KB	Output is correct
67	Correct	250 ms	23872 KB	Output is correct
68	Correct	285 ms	24016 KB	Output is correct
69	Correct	433 ms	23772 KB	Output is correct
70	Correct	183 ms	23928 KB	Output is correct
71	Correct	203 ms	23932 KB	Output is correct
72	Correct	233 ms	23928 KB	Output is correct
73	Correct	393 ms	24052 KB	Output is correct
74	Correct	190 ms	23920 KB	Output is correct
75	Correct	203 ms	23928 KB	Output is correct
76	Correct	235 ms	23928 KB	Output is correct
77	Correct	396 ms	23780 KB	Output is correct
78	Correct	321 ms	24056 KB	Output is correct
79	Correct	277 ms	24056 KB	Output is correct
80	Correct	326 ms	23928 KB	Output is correct
81	Correct	283 ms	23892 KB	Output is correct
82	Correct	229 ms	24084 KB	Output is correct
83	Correct	158 ms	16136 KB	Output is correct
84	Correct	219 ms	23928 KB	Output is correct
85	Correct	380 ms	24100 KB	Output is correct
86	Correct	332 ms	23872 KB	Output is correct
87	Correct	284 ms	23928 KB	Output is correct
88	Correct	290 ms	23940 KB	Output is correct

답안 #137992

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