no member named cout in namespace std

let's work hard." endl; #define weekend() cout "weekend.

include cstring>#include iostream>using namespace std;int

状态表示f[i][j]:集合:所有将a[1:i]变成b[1:j]的操作方式属性:min

void niceinorder(btnode* ptr){if (ptr == null) return;std::stack

include iostream>using namespace std;int main() {cout "鹅,鹅

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