View Compilation Error

0_0_35516064_11871.c: In function 'main':
0_0_35516064_11871.c:11:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int i=0;i<m;i++){
     ^
0_0_35516064_11871.c:11:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_35516064_11871.c:12:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int j=0;j<3;j++){
         ^
0_0_35516064_11871.c:16:13: error: redefinition of 'i'
     for(int i=0;i<m;i++){
             ^
0_0_35516064_11871.c:11:13: note: previous definition of 'i' was here
     for(int i=0;i<m;i++){
             ^
0_0_35516064_11871.c:16:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
     for(int i=0;i<m;i++){
     ^
0_0_35516064_11871.c:18:9: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
         for(int j=i-1;j>=0;j--){
         ^