View Compilation Error

0_0_34259286_7643.c: In function 'main':
0_0_34259286_7643.c:9:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int t = 0; t < n; t++)
    ^
0_0_34259286_7643.c:9:4: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_34259286_7643.c:11:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j = 0;j < n; j++){
    ^
0_0_34259286_7643.c:12:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int k = 0;k < n-j; k++){
     ^
0_0_34259286_7643.c:19:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int i = 0;i<n+1;i++)
    ^
0_0_34259286_7643.c:21:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for (int r = 0;r<n+1;r++)
    ^