0_0_25386999_26477.cpp: In function 'int main()': 0_0_25386999_26477.cpp:67:31: error: expected initializer before 'it' set<int> iterator it = S.begin(); ^ 0_0_25386999_26477.cpp:70:27: error: 'it' was not declared in this scope a[cur] = *it; ^