oj.uz

Submission #534463

# Submission time Handle Problem Language Result Execution time Memory
534463 2022-03-08T07:35:04 Z 79brue Lamps (JOI19_lamps) C++14
4 / 100
 133 ms 8156 KB 
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int n;
bool a[1000002];
bool b[1000002];
int DP[1000002];

int main(){
    scanf("%d", &n);
    for(int i=1; i<=n; i++) scanf("%1d", &a[i]);
    for(int i=1; i<=n; i++) scanf("%1d", &b[i]);

    int zero = 0, one = 0, rev = 0;
    for(int i=1; i<=n; i++){
        DP[i] = 1e9;
        if(a[i] == b[i]) DP[i] = DP[i-1];

        if(b[i] == 0){
            DP[i] = min(DP[i], DP[zero] + 1);
        }
        else zero = i;

        if(b[i] == 1){
            DP[i] = min(DP[i], DP[one] + 1);
        }
        else one = i;

        if(a[i] != b[i]){
            DP[i] = min(DP[i], DP[rev] + 1);
        }
        else rev = i;
    }
    printf("%d", DP[n]);
}

Compilation message

lamp.cpp: In function 'int main()':
lamp.cpp:14:38: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'bool*' [-Wformat=]
   14 |     for(int i=1; i<=n; i++) scanf("%1d", &a[i]);
      |                                    ~~^   ~~~~~
      |                                      |   |
      |                                      |   bool*
      |                                      int*
lamp.cpp:15:38: warning: format '%d' expects argument of type 'int*', but argument 2 has type 'bool*' [-Wformat=]
   15 |     for(int i=1; i<=n; i++) scanf("%1d", &b[i]);
      |                                    ~~^   ~~~~~
      |                                      |   |
      |                                      |   bool*
      |                                      int*
lamp.cpp:13:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   13 |     scanf("%d", &n);
      |     ~~~~~^~~~~~~~~~
lamp.cpp:14:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     for(int i=1; i<=n; i++) scanf("%1d", &a[i]);
      |                             ~~~~~^~~~~~~~~~~~~~
lamp.cpp:15:34: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     for(int i=1; i<=n; i++) scanf("%1d", &b[i]);
      |                             ~~~~~^~~~~~~~~~~~~~

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 300 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Incorrect 1 ms 300 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #2
0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 300 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Incorrect 1 ms 300 KB Output isn't correct
14 Halted 0 ms 0 KB -

Subtask #3
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 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 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 123 ms 7988 KB Output is correct
8 Correct 131 ms 7988 KB Output is correct
9 Correct 132 ms 8156 KB Output is correct
10 Correct 129 ms 8004 KB Output is correct
11 Correct 133 ms 8052 KB Output is correct
12 Correct 119 ms 7992 KB Output is correct
13 Correct 123 ms 8060 KB Output is correct
14 Correct 128 ms 8132 KB Output is correct

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 300 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 300 KB Output is correct
4 Correct 1 ms 296 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 1 ms 296 KB Output is correct
13 Incorrect 1 ms 300 KB Output isn't correct
14 Halted 0 ms 0 KB -