0_0_30763580_22975.cpp: In function 'int main()': 0_0_30763580_22975.cpp:55:3: error: expected ';' before 'idx' idx = 0, ans = 1, sum = 0; ^ 0_0_30763580_22975.cpp:62:18: error: expected primary-expression before ')' token if(!vis[i] && ){ ^