View Compilation Error

0_0_6609055_2611.cpp: In function `int main()':
0_0_6609055_2611.cpp:91: error: `i' undeclared (first use this function)
0_0_6609055_2611.cpp:91: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6609055_2611.cpp:91: error: `FOR' undeclared (first use this function)
0_0_6609055_2611.cpp:91: error: expected `;' before '{' token
0_0_6609055_2611.cpp:95: error: `sort' undeclared (first use this function)