View Compilation Error

0_0_10839175_21396.cpp: In function `long double cal(double)':
0_0_10839175_21396.cpp:7: error: invalid operands of types `double' and `int' to binary `operator%'
0_0_10839175_21396.cpp: At global scope:
0_0_10839175_21396.cpp:19: error: `main' must return `int'
0_0_10839175_21396.cpp: In function `int main(...)':
0_0_10839175_21396.cpp:22: error: expression in new-declarator must have integral or enumeration type
0_0_10839175_21396.cpp:25: error: invalid types `long double*[double]' for array subscript
0_0_10839175_21396.cpp:28: error: invalid types `long double*[double]' for array subscript