View Compilation Error

0_0_35023893_17820.c: In function 'main':
0_0_35023893_17820.c:8:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
   for(int i=0;i<m;i++){
   ^
0_0_35023893_17820.c:8:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_35023893_17820.c:9:4: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
    for(int j=0;j<n;j++){
    ^