View Compilation Error

0_0_17276471_6166.c: In function 'main':
0_0_17276471_6166.c:40:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int i = 0; i < t; ++i)
         ^
0_0_17276471_6166.c:40:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_17276471_6166.c:42:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int j = 0; j < t - 1; ++j)
         ^
0_0_17276471_6166.c:43:22: error: redefinition of 'i'
             for (int i = j+1; i < t; ++i)
                      ^
0_0_17276471_6166.c:40:18: note: previous definition of 'i' was here
         for (int i = 0; i < t; ++i)
                  ^
0_0_17276471_6166.c:43:13: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
             for (int i = j+1; i < t; ++i)
             ^