View Compilation Error

0_0_19923726_3936.c: In function 'main':
0_0_19923726_3936.c:7:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=0;i<n;i++)
  ^
0_0_19923726_3936.c:7:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_19923726_3936.c:19:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int t=0;t<=m;t++)
    ^
0_0_19923726_3936.c:21:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j=0;j<m;j++)
    ^
0_0_19923726_3936.c:37:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int r=1;r<b;r++)
    ^
0_0_19923726_3936.c:42:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int e=1;e<b;e++)
    ^