oj.uz

Submission #441108

# Submission time Handle Problem Language Result Execution time Memory
441108 2021-07-04T07:44:06 Z mosesmayer Remittance (JOI19_remittance) C++17
100 / 100
 463 ms 44216 KB 
#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
#define int LL
using namespace std;
typedef long long LL;
typedef pair<int,int> pii;
typedef vector<int> vi;

const LL LINF = 1e18;
const int mxsz = 1e6 + 5;
int n;
int a[mxsz], b[mxsz];
int d[mxsz];

int32_t main(){
	scanf("%lld", &n);
	for (int i = 0; i < n; i++)
		scanf("%lld %lld", a+i, b+i);
	LL dbt = 0, zeroed = 0, topup = 0, neg = 0;
	LL totalTopup = 0;
	for (int i = 0; i < n; i++){
		d[i] = a[i] - b[i];
		if (d[i] > 0) topup++, totalTopup += d[i];
		else if (d[i] < 0) neg++;
	}
#ifdef DEBUG
	for (int i = 0; i < n; i++){
		cout << i << ": " << d[i] << '\n';
	}
#endif
	bool can = 1;
	for (int i = 0; neg > 0 || dbt < 0; (i += n-1) %= n){
		dbt <<= 1;
#ifdef DEBUG
		cout << i << ' ' << dbt << ' ' << topup << ' ' << neg << '\n';
#endif
		if (topup == 0){can = 0; break;}
		if (d[i] < 0){
			dbt += d[i]; neg--;
			d[i] = 0;
		} else if (d[i] > 0){
			if (dbt < 0){
				LL x = min(llabs(dbt), 1LL * d[i]);
				dbt += x;
				d[i] -= x;
				if (d[i] == 0) topup--;
			}
		}
		if (dbt < (-LINF)){can = 0; break;}
	}
	if (can && topup > 0){
#ifdef DEBUG
		cout << "topup available\n";
		for (int i = 0; i < n; i++){
			cout << i << ": " << d[i] << '\n';
		}
#endif
		int cur = 0;
		int extra = 0;
		for (int i = 0; i < n; i++) extra += d[i];
		for (int i = 0; cur++ < n + 10 && extra > 0; (i += 1)%=n){
			if (d[i] > 1){
				int x = d[i];
				d[i] -= x;
				extra -= x; extra += __builtin_popcount(x);
				cur = 0;
				for (int b = 0; (1<<b) <= x; b++){
					if (x & (1<<b)) d[(i + b) % n]++;
				}
			}
		}
		bool sabi = 1, pinjem = 0;
		for (int i = 0; i < n; i++){
			sabi &= d[i] == 1;
			pinjem |= b[i] > 0;
		}
		if (extra > 0 && !(sabi && pinjem))  can = 0;
	}
	puts(can ? "Yes" : "No");
	return 0;
}

Compilation message

remittance.cpp: In function 'int32_t main()':
remittance.cpp:21:14: warning: unused variable 'zeroed' [-Wunused-variable]
   21 |  LL dbt = 0, zeroed = 0, topup = 0, neg = 0;
      |              ^~~~~~
remittance.cpp:18:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   18 |  scanf("%lld", &n);
      |  ~~~~~^~~~~~~~~~~~
remittance.cpp:20:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   20 |   scanf("%lld %lld", a+i, b+i);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 0 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 0 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 304 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 0 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 0 ms 300 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 312 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 256 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 0 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 0 ms 204 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 304 KB Output is correct
31 Correct 0 ms 204 KB Output is correct
32 Correct 0 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 0 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 0 ms 204 KB Output is correct
38 Correct 1 ms 204 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 0 ms 204 KB Output is correct
41 Correct 0 ms 204 KB Output is correct
42 Correct 1 ms 204 KB Output is correct
43 Correct 1 ms 204 KB Output is correct
44 Correct 1 ms 204 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 0 ms 204 KB Output is correct
48 Correct 0 ms 204 KB Output is correct
49 Correct 1 ms 204 KB Output is correct
50 Correct 1 ms 204 KB Output is correct
51 Correct 0 ms 204 KB Output is correct
52 Correct 1 ms 204 KB Output is correct
53 Correct 1 ms 204 KB Output is correct
54 Correct 1 ms 204 KB Output is correct
55 Correct 1 ms 204 KB Output is correct
56 Correct 1 ms 204 KB Output is correct
57 Correct 1 ms 204 KB Output is correct
58 Correct 1 ms 204 KB Output is correct
59 Correct 1 ms 204 KB Output is correct
60 Correct 1 ms 204 KB Output is correct
61 Correct 1 ms 204 KB Output is correct
62 Correct 1 ms 204 KB Output is correct
63 Correct 281 ms 43020 KB Output is correct
64 Correct 208 ms 27568 KB Output is correct
65 Correct 437 ms 42900 KB Output is correct
66 Correct 207 ms 27592 KB Output is correct
67 Correct 199 ms 29044 KB Output is correct
68 Correct 207 ms 31312 KB Output is correct
69 Correct 400 ms 43072 KB Output is correct
70 Correct 212 ms 27716 KB Output is correct
71 Correct 209 ms 29020 KB Output is correct
72 Correct 198 ms 31428 KB Output is correct
73 Correct 403 ms 43160 KB Output is correct
74 Correct 206 ms 27588 KB Output is correct
75 Correct 202 ms 29016 KB Output is correct
76 Correct 205 ms 31428 KB Output is correct
77 Correct 286 ms 43140 KB Output is correct
78 Correct 406 ms 35396 KB Output is correct
79 Correct 404 ms 35392 KB Output is correct
80 Correct 380 ms 35280 KB Output is correct
81 Correct 405 ms 35440 KB Output is correct
82 Correct 180 ms 27580 KB Output is correct
83 Correct 173 ms 27732 KB Output is correct
84 Correct 199 ms 27588 KB Output is correct
85 Correct 446 ms 44208 KB Output is correct
86 Correct 463 ms 44216 KB Output is correct
87 Correct 344 ms 36568 KB Output is correct
88 Correct 337 ms 36444 KB Output is correct