View Compilation Error

0_0_29495945_6298.c: In function 'main':
0_0_29495945_6298.c:22:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=0; i<n; i++){
   ^
0_0_29495945_6298.c:22:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_29495945_6298.c:32:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=0; i<idx; i++)
  ^
0_0_29495945_6298.c: In function 'getTime':
0_0_29495945_6298.c:44:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=strlen(temp)-1; i>=0; i--){
  ^
0_0_29495945_6298.c: In function 'sort':
0_0_29495945_6298.c:69:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
  for(int i=0; i<idx-1; i++){
  ^
0_0_29495945_6298.c:70:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int j=i+1; j<idx; j++){
   ^