View Compilation Error

0_0_8766730_22105.c:2:16: cmath: No such file or directory
0_0_8766730_22105.c:4: error: syntax error before "namespace"
0_0_8766730_22105.c: In function `solve':
0_0_8766730_22105.c:29: error: 'for' loop initial declaration used outside C99 mode
0_0_8766730_22105.c:43: error: redefinition of 'i'
0_0_8766730_22105.c:29: error: previous definition of 'i' was here
0_0_8766730_22105.c:43: error: 'for' loop initial declaration used outside C99 mode
0_0_8766730_22105.c:54: error: redefinition of 'i'
0_0_8766730_22105.c:43: error: previous definition of 'i' was here
0_0_8766730_22105.c:54: error: 'for' loop initial declaration used outside C99 mode
0_0_8766730_22105.c: In function `main':
0_0_8766730_22105.c:66: error: 'for' loop initial declaration used outside C99 mode