View Compilation Error

0_0_3036128_28128.c:2:19: cstdio: No such file or directory
0_0_3036128_28128.c:3:22: algorithm: No such file or directory
0_0_3036128_28128.c:4: error: syntax error before "namespace"
0_0_3036128_28128.c:6: error: variable-size type declared outside of any function
0_0_3036128_28128.c:6: error: variable-size type declared outside of any function
0_0_3036128_28128.c:6: error: variable-size type declared outside of any function
0_0_3036128_28128.c: In function `max_sum':
0_0_3036128_28128.c:16: error: syntax error before '?' token
0_0_3036128_28128.c:18: error: syntax error before '?' token
0_0_3036128_28128.c: In function `main':
0_0_3036128_28128.c:27: error: 'for' loop initial declaration used outside C99 mode