0_0_30096597_16128.c: In function 'dfs':
0_0_30096597_16128.c:24:2: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=ph[x];i!=-1;i=e[i].next)
^
0_0_30096597_16128.c:24:2: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
0_0_30096597_16128.c: In function 'main':
0_0_30096597_16128.c:49:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:51:11: error: redefinition of 'i'
for(int i=1;i<=m;i++)
^
0_0_30096597_16128.c:49:11: note: previous definition of 'i' was here
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:51:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=m;i++)
^
0_0_30096597_16128.c:61:11: error: redefinition of 'i'
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:51:11: note: previous definition of 'i' was here
for(int i=1;i<=m;i++)
^
0_0_30096597_16128.c:61:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:68:11: error: redefinition of 'i'
for(int i=1;i<=pp;i+=2)
^
0_0_30096597_16128.c:61:11: note: previous definition of 'i' was here
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:68:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=pp;i+=2)
^
0_0_30096597_16128.c:73:11: error: redefinition of 'i'
for(int i=1;i<=bian;i++)
^
0_0_30096597_16128.c:68:11: note: previous definition of 'i' was here
for(int i=1;i<=pp;i+=2)
^
0_0_30096597_16128.c:73:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=bian;i++)
^
0_0_30096597_16128.c:77:11: error: redefinition of 'i'
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:73:11: note: previous definition of 'i' was here
for(int i=1;i<=bian;i++)
^
0_0_30096597_16128.c:77:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:79:11: error: redefinition of 'i'
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:77:11: note: previous definition of 'i' was here
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:79:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:84:11: error: redefinition of 'i'
for(int i=1;i<=m;i++)
^
0_0_30096597_16128.c:79:11: note: previous definition of 'i' was here
for(int i=1;i<=n;i++)
^
0_0_30096597_16128.c:84:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1;i<=m;i++)
^
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