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这麽简单的题都Wa且找不出错误....我想死...#include <iostream.h> #include <stdio.h> #include <string.h> using namespace std; char s[300]; bool rightful(int j) { if (j==0) return true; int i; i=j; bool its=false; for (;s[i]!=')';i++) if (s[i]=='+'||s[i]=='-') its=true; if (its==false) return true; i=j-1; for (;s[i]==' '&&i>=0;i--); if (i<0) return true; if (s[i]=='(') return true; if (s[i]=='+') return true; return false; } int deleteit(int j) { int i; s[j]=' '; int t=0; for (i=j;i<strlen(s-1);i++) { if (s[i]==')'&&t==0) {s[i]=' '; return 0;} if (s[i]=='(') t++; if (s[i]==')') t--; } return 0; } int main() { int n; scanf("%d\n",&n); for (int i=1;i<=n;i++) { // fgets(s,300,stdin); gets(s); int j; bool change; do { change=false; for (j=0;j<strlen(s); j++) { // if (s[j]==' '){ deleteit(j,1); change=true; break; } if (s[j]=='('&&rightful(j)) {deleteit(j); change=true; break;} } } while(change==true); // puts(s); int q; for (q=0;q<strlen(s);q++) if (s[q]!=' ') cout<<s[q]; cout<<endl; } return 0; } //--------------------------------------------------------------------------- Followed by: Post your reply here: |
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