View Compilation Error

0_0_31460862_15874.c: In function 'MaxSubArray':
0_0_31460862_15874.c:10:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for (int i = 1; i < len; i++)
  ^
0_0_31460862_15874.c:10:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_31460862_15874.c: In function 'main':
0_0_31460862_15874.c:34:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for (int i = 0; i < t; ++i)
  ^
0_0_31460862_15874.c:42:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for (int j = 0; j < n; ++j)
   ^