Problem in 5C
Difference between en1 and en2, changed 20 character(s)
Hi, I have used the same logic as editorial in problem 5C but my code gets the wrong answer.↵
https://codeforces.com/contest/5/problem/C↵


~~~~~↵
#include<bits/stdc++.h>↵
using namespace std;↵

const int MAXN = 1e6;↵
int dp[MAXN];↵

int main()↵
{↵
    string str;cin >> str;↵
    stack<int> s;int maxs=0,su0;↵
    for(int i=0;i<str.size();++i){↵
        if(str[i]=='('){↵
            s.push(i);dp[i]=-1;↵
        }else{↵
            if(s.empty()) dp[i]=-1;↵
            else{↵
                int top = s.top();int res = i-top+1;↵
                if(top!=0 && str[top-1]==')' && dp[top-1]!=-1) res += dp[top-1];↵
                dp[i]=res;maxs=max(maxs,dp[i]);↵
            }↵
        }↵
    }cout << maxs;↵
}

~~~~~↵

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  Rev. Lang. By When Δ Comment
en2 English ContestFucker 2019-06-18 09:05:25 20
en1 English ContestFucker 2019-06-18 09:05:05 718 Initial revision (published)