View Compilation Error

0_0_14668539_19500.c: In function 'main':
0_0_14668539_19500.c:28:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int i=0;i<m;i++){
         ^
0_0_14668539_19500.c:28:9: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_14668539_19500.c:32:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int j=0;j<m-1;j++)
         ^