0_0_20441482_25259.c: In function 'jw':
0_0_20441482_25259.c:22:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0;i<len/2;i++) s1[i]='4';
^
0_0_20441482_25259.c:22:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_20441482_25259.c:23:11: error: redefinition of 'i'
for(int i=len/2;i<len;i++) s1[i]='7';
^
0_0_20441482_25259.c:22:11: note: previous definition of 'i' was here
for(int i=0;i<len/2;i++) s1[i]='4';
^
0_0_20441482_25259.c:23:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=len/2;i<len;i++) s1[i]='7';
^
0_0_20441482_25259.c:26:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0;i<len/2;i++) s1[i]='4';
^
0_0_20441482_25259.c:27:11: error: redefinition of 'i'
for(int i=len/2;i<len;i++) s1[i]='7';
^
0_0_20441482_25259.c:26:11: note: previous definition of 'i' was here
for(int i=0;i<len/2;i++) s1[i]='4';
^
0_0_20441482_25259.c:27:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=len/2;i<len;i++) s1[i]='7';
^
0_0_20441482_25259.c: In function 'ok':
0_0_20441482_25259.c:44:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0;i<len;i++){
^
0_0_20441482_25259.c: In function 'main':
0_0_20441482_25259.c:58:5: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=0;i<len;i++){
^
0_0_20441482_25259.c:61:5: error: expected expression before '/' token
//int tm=0;
^
0_0_20441482_25259.c:63:6: error: expected expression before '/' token
//if(s1[0]<'4') s1[0]='4';
^
0_0_20441482_25259.c:65:5: error: expected expression before '/' token
// tm++;
^
0_0_20441482_25259.c:66:5: error: expected expression before '/' token
// printf("%s\n",s1);
^
0_0_20441482_25259.c:67:6: error: expected expression before '/' token
}//printf("%d\n",tm);
^
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