SHOW:
|
|
- or go back to the newest paste.
| 1 | #include <iostream> | |
| 2 | using namespace std; | |
| 3 | const int MAX=255; | |
| 4 | char a[MAX], s[MAX]; | |
| 5 | int k=0; | |
| 6 | int main() {
| |
| 7 | cin>>s; | |
| 8 | for(int i = 0; i <strlen(s); i++) {
| |
| 9 | - | if ((s[i]=='(' || s[i]=='[' || s[i]=='{') && k<MAX) a[++k]=s[i];
|
| 9 | + | if (s[i]=='(' || s[i]=='[' || s[i]=='{') a[k++]=s[i];
|
| 10 | - | if ((s[i]==')' && a[k]=='(' || s[i]==']' && a[k]=='[' || s[i]=='}' && a[k]=='{') && k>=1) k--;
|
| 10 | + | if ((s[i]==')' && a[k-1]=='(' || s[i]==']' && a[k-1]=='[' || s[i]=='}' && a[k-1]=='{') && k>0)k--;
|
| 11 | } | |
| 12 | - | if (k==0) cout<<"no"; else cout<<"yes"; |
| 12 | + | if (k==0) cout<<"yes"; else cout<<"no"; |
| 13 | return 0; | |
| 14 | } |
