为啥只通过50% #include <iostream> #include <vector> #include <string> using namespace std; class solution{ public: int func(string str){ vector<int> vec(str.size()); for(int i=0;i<str.size();++i){ if(str[i]>='1' && str[i]<='9'){ int val = str[i]-'0'; int left = i-1; int right = i+1; while(left>=0 && val>=0){ if(str[left]=='X') vec[left] = 1; left--; val--; } val = str[i]-'0'; while(right<=str.size()-1 && val>=0){ if(str[right]=='X') vec[right] = 1; right++; val--; } } } int sum = 0; for(int i=0;i<str.size();++i){ if(vec[i]==1) sum++; } return sum; } }; int main() { int N; cin >> N; string str; cin >> str; solution s; cout << s.func(str); return 0; }