0_0_38311169_10644.c:10:1: error: unknown type name 'node'
node tree[N*4];
^
0_0_38311169_10644.c: In function 'build':
0_0_38311169_10644.c:15:9: error: request for member 'l' in something not a structure or union
tree[u].l=l,tree[u].r=r;
^
0_0_38311169_10644.c:15:21: error: request for member 'r' in something not a structure or union
tree[u].l=l,tree[u].r=r;
^
0_0_38311169_10644.c:17:10: error: request for member 'idx' in something not a structure or union
tree[u].idx=k;
^
0_0_38311169_10644.c:23:9: error: request for member 'idx' in something not a structure or union
tree[u].idx=0;
^
0_0_38311169_10644.c: In function 'query':
0_0_38311169_10644.c:27:12: error: request for member 'l' in something not a structure or union
if(tree[u].l==tree[u].r){
^
0_0_38311169_10644.c:27:23: error: request for member 'r' in something not a structure or union
if(tree[u].l==tree[u].r){
^
0_0_38311169_10644.c:28:14: error: request for member 'idx' in something not a structure or union
if((tree[u].idx>p||tree[u].idx==0)&&tree[u].l>=k) return tree[u].l;
^
0_0_38311169_10644.c:28:29: error: request for member 'idx' in something not a structure or union
if((tree[u].idx>p||tree[u].idx==0)&&tree[u].l>=k) return tree[u].l;
^
0_0_38311169_10644.c:28:46: error: request for member 'l' in something not a structure or union
if((tree[u].idx>p||tree[u].idx==0)&&tree[u].l>=k) return tree[u].l;
^
0_0_38311169_10644.c:28:67: error: request for member 'l' in something not a structure or union
if((tree[u].idx>p||tree[u].idx==0)&&tree[u].l>=k) return tree[u].l;
^
0_0_38311169_10644.c:32:18: error: request for member 'r' in something not a structure or union
if(k<=tree[u<<1].r) minn=query(u<<1,p,k);
^
0_0_38311169_10644.c: In function 'main':
0_0_38311169_10644.c:45:3: error: 'for' loop initial declarations are only allowed in C99 or C11 mode
for(int i=1; i<=n; i++){
^
0_0_38311169_10644.c:45:3: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code
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