View Compilation Error

0_0_8556415_25804.cpp:1:9: #include expects "FILENAME" or <FILENAME>
0_0_8556415_25804.cpp:2:9: #include expects "FILENAME" or <FILENAME>
0_0_8556415_25804.cpp:3:9: #include expects "FILENAME" or <FILENAME>
0_0_8556415_25804.cpp:4:9: #include expects "FILENAME" or <FILENAME>
0_0_8556415_25804.cpp:5:9: #include expects "FILENAME" or <FILENAME>
0_0_8556415_25804.cpp: In function `int main()':
0_0_8556415_25804.cpp:32: error: `scanf' undeclared (first use this function)
0_0_8556415_25804.cpp:32: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_8556415_25804.cpp:35: error: `sort' undeclared (first use this function)
0_0_8556415_25804.cpp:49: error: `printf' undeclared (first use this function)