View Compilation Error

0_0_32859163_1048.cpp: In function 'int main()':
0_0_32859163_1048.cpp:41:25: error: invalid types 'int[int]' for array subscript
    scanf("%lf %lf",& p[i]. x, &p[i].y);
                         ^
0_0_32859163_1048.cpp:41:35: error: invalid types 'int[int]' for array subscript
    scanf("%lf %lf",& p[i]. x, &p[i].y);
                                   ^
0_0_32859163_1048.cpp:50:25: error: invalid types 'int[int]' for array subscript
     a[sum++] = atan2(p[j].y - p[i].y, p[j].x - p[i].x) / PI * 180;
                         ^
0_0_32859163_1048.cpp:50:34: error: invalid types 'int[int]' for array subscript
     a[sum++] = atan2(p[j].y - p[i].y, p[j].x - p[i].x) / PI * 180;
                                  ^
0_0_32859163_1048.cpp:50:42: error: invalid types 'int[int]' for array subscript
     a[sum++] = atan2(p[j].y - p[i].y, p[j].x - p[i].x) / PI * 180;
                                          ^
0_0_32859163_1048.cpp:50:51: error: invalid types 'int[int]' for array subscript
     a[sum++] = atan2(p[j].y - p[i].y, p[j].x - p[i].x) / PI * 180;
                                                   ^