View Compilation Error

1_556_910_26058.c:4:17: cmath: No such file or directory
1_556_910_26058.c:5: error: syntax error before "namespace"
1_556_910_26058.c: In function `main':
1_556_910_26058.c:15: error: syntax error before '/' token
1_556_910_26058.c:17: error: 'for' loop initial declaration used outside C99 mode
1_556_910_26058.c:19: error: syntax error before '/' token
1_556_910_26058.c:21: error: syntax error before '/' token
1_556_910_26058.c:23: error: 'for' loop initial declaration used outside C99 mode
1_556_910_26058.c:25: error: syntax error before '/' token
1_556_910_26058.c:28: error: syntax error before '/' token
1_556_910_26058.c:30: error: redefinition of 'i'
1_556_910_26058.c:23: error: previous definition of 'i' was here
1_556_910_26058.c:30: error: 'for' loop initial declaration used outside C99 mode
1_556_910_26058.c:32: error: 'for' loop initial declaration used outside C99 mode
1_556_910_26058.c:42: error: syntax error before '/' token
1_556_910_26058.c:45: error: 'for' loop initial declaration used outside C99 mode