제출 #96931

#제출 시각아이디문제언어결과실행 시간메모리
96931Kastanda괄호 문자열 (CEOI16_match)C++11
100 / 100
19 ms11888 KiB
// I do it for the glory #include<bits/stdc++.h> using namespace std; const int N = 100005, SGM = 26; int n, C[N][SGM]; char A[N], B[N]; void Solve(int l, int r) { if (r <= l) return ; int opt = C[r - 1][A[l] - 'a']; if (opt <= l) {printf("-1\n"); exit(0);} B[l] = '('; B[opt] = ')'; Solve(l + 1, opt); Solve(opt + 1, r); } int main() { scanf("%s", A); n = strlen(A); memset(C, -1, sizeof(C)); for (int i = 0; i < n; i++) for (int j = 0; j < SGM; j++) { if (A[i] - 'a' == j) C[i][j] = i; else if (i > 0 && C[i - 1][A[i] - 'a'] > 0) C[i][j] = C[C[i - 1][A[i] - 'a'] - 1][j]; } Solve(0, n); return !printf("%s\n", B); }

컴파일 시 표준 에러 (stderr) 메시지

match.cpp: In function 'int main()':
match.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%s", A);
     ~~~~~^~~~~~~~~
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