View Compilation Error

0_0_9092485_1751.cpp:28: error: expected unqualified-id before "int"
0_0_9092485_1751.cpp:28: error: expected `,' or `;' before "int"
0_0_9092485_1751.cpp: In function `int main(int, const char**)':
0_0_9092485_1751.cpp:39: error: `idx' undeclared (first use this function)
0_0_9092485_1751.cpp:39: error: (Each undeclared identifier is reported only once for each function it appears in.)