View Compilation Error

719086_0_0_14945.cpp: In function `int main()':
719086_0_0_14945.cpp:7: error: `i' undeclared (first use this function)
719086_0_0_14945.cpp:7: error: (Each undeclared identifier is reported only once for each function it appears in.)
719086_0_0_14945.cpp:17: error: `t' undeclared (first use this function)