View Compilation Error

165691_0_17051.cpp: In function `int main()':
165691_0_17051.cpp:5: error: expected init-declarator before "for"
165691_0_17051.cpp:5: error: expected `,' or `;' before "for"
165691_0_17051.cpp:5: error: expected `;' before ')' token
165691_0_17051.cpp:13: error: `a' undeclared (first use this function)
165691_0_17051.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)