ham kiem tra
unknown
plain_text
2 years ago
278 B
2
Indexable
bool is_ok(){ int sum = 0, num = 0, sign = 1; for(int i = 0; i < 2*n - 1; i++){ if(i % 2 == 0){ num = num*10 + arr[i]; } else{ if(arr[i] == 0) {continue;} sum += num*sign; num = 0; sign = arr[i]; } } sum += num*sign; return sum == 0; }
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