0_0_33012486_3508.c: In function 'main':
0_0_33012486_3508.c:21:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i=0; i<MAX(lenA, lenB); i++){
^
0_0_33012486_3508.c:21:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_33012486_3508.c:46:12: error: redefinition of 'i'
for (int i=1; i<maxn*2; i++) {
^
0_0_33012486_3508.c:21:12: note: previous definition of 'i' was here
for (int i=0; i<MAX(lenA, lenB); i++){
^
0_0_33012486_3508.c:46:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i=1; i<maxn*2; i++) {
^
0_0_33012486_3508.c:51:12: error: redefinition of 'i'
for (int i=maxn*2-1; i>=0; i--){
^
0_0_33012486_3508.c:46:12: note: previous definition of 'i' was here
for (int i=1; i<maxn*2; i++) {
^
0_0_33012486_3508.c:51:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i=maxn*2-1; i>=0; i--){
^
0_0_33012486_3508.c:70:12: error: redefinition of 'i'
for (int i=len-1; i>=0; i--){
^
0_0_33012486_3508.c:51:12: note: previous definition of 'i' was here
for (int i=maxn*2-1; i>=0; i--){
^
0_0_33012486_3508.c:70:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i=len-1; i>=0; i--){
^
0_0_33012486_3508.c:82:12: error: redefinition of 'i'
for (int i=0; i<=len; i++){
^
0_0_33012486_3508.c:70:12: note: previous definition of 'i' was here
for (int i=len-1; i>=0; i--){
^
0_0_33012486_3508.c:82:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for (int i=0; i<=len; i++){
^
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