Submission #104755

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
104755	2019-04-09 06:40:22	mzhao	Lamps (JOI19_lamps)	C++11	4 / 100	22 ms	10324 KiB

lamp

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include <bits/stdc++.h>
using namespace std;
#ifdef DEBUG
#define D(x...) printf(x)
#else
#define D(x...)
#endif
#define MN 1000009
int N, A[MN], B[MN], ans, dp[MN][2]; // finish with opposite
string AA, BB;
int main() {
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  cin >> N >> AA >> BB;
  bool SUB3 = 1;
  for (int i = 1; i <= N; i++) {
    A[i] = AA[i-1] == '1';
    B[i] = BB[i-1] == '1';
    if (A[i]) SUB3 = 0;
  }
  if (SUB3) {
    for (int i = 1, C; i <= N; i++) {
      if ((!i || B[i] != B[i-1]) && B[i]) ans++;
    }
    printf("%d\n", ans);
    return 0;
  }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

lamp.cpp: In function 'int main()':
lamp.cpp:25:19: warning: unused variable 'C' [-Wunused-variable]
   for (int i = 1, C; i <= N; i++) {
                   ^

• Subtask 1: 0 / 6
• Subtask 2: 0 / 41
• Subtask 3: 4 / 4
• Subtask 4: 0 / 49