0_0_36556232_8819.c: In function 'show_set':
0_0_36556232_8819.c:4:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0; i < len; i++){
^
0_0_36556232_8819.c:4:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_36556232_8819.c: In function 'power':
0_0_36556232_8819.c:12:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1; i < m; i++){
^
0_0_36556232_8819.c: In function 'sum_of_square':
0_0_36556232_8819.c:20:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0; i < len; i++){
^
0_0_36556232_8819.c: In function 'square_of_sum':
0_0_36556232_8819.c:28:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0; i< len; i++){
^
0_0_36556232_8819.c: In function 'hamony_set':
0_0_36556232_8819.c:36:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int j=1; j< power(2, len); j++){
^
0_0_36556232_8819.c:39:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0; i < len; i++){
^
0_0_36556232_8819.c:47:5: error: expected expression before '/' token
//debug
^
0_0_36556232_8819.c: In function 'case_proc':
0_0_36556232_8819.c:60:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0; i<n; i++){
^
0_0_36556232_8819.c: In function 'main':
0_0_36556232_8819.c:69:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i =0 ; i< num_case; i++){
^
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