View Compilation Error

0_0_28844890_16608.c: In function 'isNot62or4':
0_0_28844890_16608.c:6:9: error: expected expression before '/' token
         // {||}.time > {if else if}.time
         ^
0_0_28844890_16608.c: In function 'main':
0_0_28844890_16608.c:19:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for (int i=0;i<=1000000;i++) {
     ^
0_0_28844890_16608.c:19:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_28844890_16608.c:31:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for (int i=n;i<=m;i++) {
         ^