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Submission #495550

# Submission time Handle Problem Language Result Execution time Memory
495550 2021-12-19T10:40:14 Z 600Mihnea Remittance (JOI19_remittance) C++17
100 / 100
 224 ms 36356 KB 
#include <bits/stdc++.h>

using namespace std;

#define int long long

const int N = (int) 1e6 + 7;
int n;
int a[N];
int b[N];

signed main() {
  ios::sync_with_stdio(0); cin.tie(0);

  //freopen ("input", "r", stdin);

  cin >> n;
  int sa = 0, sb = 0;
  for (int i = 0; i < n; i++) {
    cin >> a[i] >> b[i];
    sa += a[i];
    sb += b[i];
  }

  if (sb == 0) {
    if (sa == 0) {
      cout << "Yes\n";
    } else {
      cout << "No\n";
    }
    exit(0);
  }

  while (true) {
    bool change = false;
    for (int i = 0; i < n; i++) {
      int j = (i + 1) % n;
      int extra = a[i] - b[i];
      if (extra >= 1) {
        change = true;
        a[i] -= (extra + 1) / 2 * 2;
        a[j] += (extra + 1) / 2;
      }
    }
    if (!change) {
      break;
    }
  }

  for (int i = 0; i < n; i++) {
    if (a[i] != b[i]) {
      cout << "No\n";
      exit(0);
    }
  }

  cout << "Yes\n";




  return 0;
}

Subtask #1
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 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 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 336 KB Output is correct
26 Correct 0 ms 336 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 288 KB Output is correct
32 Correct 1 ms 224 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 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 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 336 KB Output is correct
26 Correct 0 ms 336 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 288 KB Output is correct
32 Correct 1 ms 224 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct
37 Correct 1 ms 324 KB Output is correct
38 Correct 0 ms 208 KB Output is correct
39 Correct 0 ms 324 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 0 ms 208 KB Output is correct
43 Correct 0 ms 336 KB Output is correct
44 Correct 0 ms 208 KB Output is correct
45 Correct 0 ms 208 KB Output is correct
46 Correct 0 ms 336 KB Output is correct
47 Correct 0 ms 208 KB Output is correct
48 Correct 0 ms 208 KB Output is correct
49 Correct 0 ms 208 KB Output is correct
50 Correct 0 ms 324 KB Output is correct
51 Correct 1 ms 328 KB Output is correct
52 Correct 0 ms 208 KB Output is correct
53 Correct 0 ms 208 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 208 KB Output is correct
56 Correct 1 ms 208 KB Output is correct
57 Correct 1 ms 208 KB Output is correct
58 Correct 0 ms 324 KB Output is correct
59 Correct 0 ms 336 KB Output is correct
60 Correct 0 ms 208 KB Output is correct
61 Correct 0 ms 208 KB Output is correct
62 Correct 1 ms 208 KB Output is correct

Subtask #3
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 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 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 0 ms 332 KB Output is correct
12 Correct 0 ms 204 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 0 ms 204 KB Output is correct
18 Correct 0 ms 204 KB Output is correct
19 Correct 0 ms 204 KB Output is correct
20 Correct 0 ms 204 KB Output is correct
21 Correct 1 ms 324 KB Output is correct
22 Correct 1 ms 328 KB Output is correct
23 Correct 1 ms 208 KB Output is correct
24 Correct 0 ms 208 KB Output is correct
25 Correct 0 ms 336 KB Output is correct
26 Correct 0 ms 336 KB Output is correct
27 Correct 0 ms 208 KB Output is correct
28 Correct 0 ms 208 KB Output is correct
29 Correct 0 ms 208 KB Output is correct
30 Correct 0 ms 208 KB Output is correct
31 Correct 0 ms 288 KB Output is correct
32 Correct 1 ms 224 KB Output is correct
33 Correct 0 ms 208 KB Output is correct
34 Correct 1 ms 208 KB Output is correct
35 Correct 1 ms 208 KB Output is correct
36 Correct 1 ms 208 KB Output is correct
37 Correct 1 ms 324 KB Output is correct
38 Correct 0 ms 208 KB Output is correct
39 Correct 0 ms 324 KB Output is correct
40 Correct 1 ms 324 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 0 ms 208 KB Output is correct
43 Correct 0 ms 336 KB Output is correct
44 Correct 0 ms 208 KB Output is correct
45 Correct 0 ms 208 KB Output is correct
46 Correct 0 ms 336 KB Output is correct
47 Correct 0 ms 208 KB Output is correct
48 Correct 0 ms 208 KB Output is correct
49 Correct 0 ms 208 KB Output is correct
50 Correct 0 ms 324 KB Output is correct
51 Correct 1 ms 328 KB Output is correct
52 Correct 0 ms 208 KB Output is correct
53 Correct 0 ms 208 KB Output is correct
54 Correct 1 ms 324 KB Output is correct
55 Correct 1 ms 208 KB Output is correct
56 Correct 1 ms 208 KB Output is correct
57 Correct 1 ms 208 KB Output is correct
58 Correct 0 ms 324 KB Output is correct
59 Correct 0 ms 336 KB Output is correct
60 Correct 0 ms 208 KB Output is correct
61 Correct 0 ms 208 KB Output is correct
62 Correct 1 ms 208 KB Output is correct
63 Correct 213 ms 35372 KB Output is correct
64 Correct 114 ms 19816 KB Output is correct
65 Correct 209 ms 34752 KB Output is correct
66 Correct 124 ms 19784 KB Output is correct
67 Correct 114 ms 21264 KB Output is correct
68 Correct 141 ms 23620 KB Output is correct
69 Correct 224 ms 35444 KB Output is correct
70 Correct 122 ms 19788 KB Output is correct
71 Correct 115 ms 21276 KB Output is correct
72 Correct 133 ms 23628 KB Output is correct
73 Correct 210 ms 35444 KB Output is correct
74 Correct 106 ms 19860 KB Output is correct
75 Correct 115 ms 21240 KB Output is correct
76 Correct 138 ms 23700 KB Output is correct
77 Correct 205 ms 35232 KB Output is correct
78 Correct 132 ms 27504 KB Output is correct
79 Correct 173 ms 27576 KB Output is correct
80 Correct 149 ms 27464 KB Output is correct
81 Correct 150 ms 27528 KB Output is correct
82 Correct 89 ms 19784 KB Output is correct
83 Correct 88 ms 19800 KB Output is correct
84 Correct 105 ms 19856 KB Output is correct
85 Correct 217 ms 36356 KB Output is correct
86 Correct 218 ms 36296 KB Output is correct
87 Correct 188 ms 28664 KB Output is correct
88 Correct 190 ms 28576 KB Output is correct