View Compilation Error

0_0_25930820_22606.c: In function 'main':
0_0_25930820_22606.c:26:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for (int i = 0; i < t; i++) {
     ^
0_0_25930820_22606.c:26:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_25930820_22606.c:30:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int j = 0; j < n; j++) {
         ^
0_0_25930820_22606.c:35:18: error: redefinition of 'j'
         for (int j = 0; j < (1 << n); j++) {
                  ^
0_0_25930820_22606.c:30:18: note: previous definition of 'j' was here
         for (int j = 0; j < n; j++) {
                  ^
0_0_25930820_22606.c:35:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int j = 0; j < (1 << n); j++) {
         ^
0_0_25930820_22606.c:37:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for (int k = 0; k < n; k++) {
             ^