0_0_39107471_12054.cpp: In function 'int main()':
0_0_39107471_12054.cpp:7:16: error: 'scanf' was not declared in this scope
7 | while (scanf("%d %d %d %d", &a[0], &a[1], &a[2], &a[3]))
| ^~~~~
0_0_39107471_12054.cpp:10:24: error: 'cout' was not declared in this scope
10 | if (k) cout << endl;//如果k是0,说明是第一样例
| ^~~~
0_0_39107471_12054.cpp:2:1: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
1 | #include <algorithm>
+++ |+#include <iostream>
2 | using namespace std;
0_0_39107471_12054.cpp:10:32: error: 'endl' was not declared in this scope
10 | if (k) cout << endl;//如果k是0,说明是第一样例
| ^~~~
0_0_39107471_12054.cpp:2:1: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
1 | #include <algorithm>
+++ |+#include <ostream>
2 | using namespace std;
0_0_39107471_12054.cpp:17:33: error: 'cout' was not declared in this scope
17 | cout << a[0] << a[1] << a[2] << a[3];
| ^~~~
0_0_39107471_12054.cpp:17:33: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39107471_12054.cpp:18:46: error: 'cout' was not declared in this scope
18 | else if (k1 == a[0]) cout << ' ' << a[0] << a[1] << a[2] << a[3];
| ^~~~
0_0_39107471_12054.cpp:18:46: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39107471_12054.cpp:19:30: error: 'cout' was not declared in this scope
19 | else cout << endl << a[0] << a[1] << a[2] << a[3];
| ^~~~
0_0_39107471_12054.cpp:19:30: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39107471_12054.cpp:19:38: error: 'endl' was not declared in this scope
19 | else cout << endl << a[0] << a[1] << a[2] << a[3];
| ^~~~
0_0_39107471_12054.cpp:19:38: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
0_0_39107471_12054.cpp:22:17: error: 'cout' was not declared in this scope
22 | cout << endl;
| ^~~~
0_0_39107471_12054.cpp:22:17: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'?
0_0_39107471_12054.cpp:22:25: error: 'endl' was not declared in this scope
22 | cout << endl;
| ^~~~
0_0_39107471_12054.cpp:22:25: note: 'std::endl' is defined in header '<ostream>'; did you forget to '#include <ostream>'?
|