View Compilation Error

0_0_29138490_96.c: In function 'main':
0_0_29138490_96.c:15:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=1; i<=m; i++){
         ^
0_0_29138490_96.c:15:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_29138490_96.c:17:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int d=0; d<=1; d++){
         ^