View Compilation Error

0_0_22332458_19451.cpp: In function 'int main()':
0_0_22332458_19451.cpp:11:21: error: invalid types 'double [1000][double]' for array subscript
    scanf("%d%d",&x[i],&y[i]);
                     ^
0_0_22332458_19451.cpp:11:27: error: invalid types 'double [1000][double]' for array subscript
    scanf("%d%d",&x[i],&y[i]);
                           ^
0_0_22332458_19451.cpp:15:16: error: invalid types 'double [1000][double]' for array subscript
    sum=sum+(x[i]*y[(i+1)%n]-x[(i+1)%n]*y[i])/2.0;
                ^
0_0_22332458_19451.cpp:15:26: error: invalid operands of types 'double' and 'double' to binary 'operator%'
    sum=sum+(x[i]*y[(i+1)%n]-x[(i+1)%n]*y[i])/2.0;
                          ^
0_0_22332458_19451.cpp:15:37: error: invalid operands of types 'double' and 'double' to binary 'operator%'
    sum=sum+(x[i]*y[(i+1)%n]-x[(i+1)%n]*y[i])/2.0;
                                     ^
0_0_22332458_19451.cpp:15:43: error: invalid types 'double [1000][double]' for array subscript
    sum=sum+(x[i]*y[(i+1)%n]-x[(i+1)%n]*y[i])/2.0;
                                           ^