|
|
| #include<cstdlib> |
| int qwerty_getcode(int code) { |
| return code == 42? 0: 1; |
| } |
| namespace std { |
| void qwerty_exit(int code){ |
| exit(qwerty_getcode(code)); |
| } |
| } using std::qwerty_exit; |
| #define exit qwerty_exit |
| #define main qwerty_main |
| #include "testlib.h" |
|
|
| #include <string> |
| #include <vector> |
|
|
| int main(int argc, char **argv) { |
| registerTestlibCmd(argc, argv); |
|
|
| int n = inf.readInt(); |
| std::string s = inf.readWord(); |
|
|
| std::vector<int> prefix_sums(2 * n, 0); |
| for (int i = 0; i < 2 * n - 1; ++i) { |
| prefix_sums[i + 1] = prefix_sums[i] + int(s[i] == 'W'); |
| } |
|
|
| int x = ouf.readInt(0, 2 * n - 1, "x"); |
| |
| int cnt = 0; |
| int l = 0, r; |
| for (r = 0; r < 2 * n - 1 && prefix_sums[r + 1] < x; ++r); |
| while (cnt < n && r < 2 * n - 1) { |
| while (prefix_sums[r + 1] - prefix_sums[l] > x) ++l; |
| for ( |
| int i = l; |
| cnt < n |
| && r - i + 1 >= n |
| && prefix_sums[r + 1] - prefix_sums[i] == x; |
| ++i |
| ) { ++cnt; } |
| ++r; |
| } |
|
|
| if (cnt == n) quitf(_ok, "At least n intervals"); |
| else quitf(_wa, "Not enough intervals"); |
|
|
| return 0; |
| } |
|
|
| #undef main |
| #include<cstdio> |
| #include<vector> |
| #include<string> |
| #include<filesystem> |
| int main(int argc, char **argv) { |
| namespace fs = std::filesystem; |
| freopen(argv[2], "r", stdin); |
| char judge_out[] = "/dev"; |
| std::vector<char*> new_argv = { |
| argv[0], argv[1], argv[3], |
| judge_out, |
| }; |
| return qwerty_getcode(qwerty_main((int)new_argv.size(), new_argv.data())); |
| } |
|
|
