0_0_33214006_30288.cpp: In function 'void pushup(int)':
0_0_33214006_30288.cpp:26:2: error: 'tr' was not declared in this scope
tr[u].sum=(tr[u<<1].sum+tr[u<<1|1].sum)%mod;
^
0_0_33214006_30288.cpp: In function 'void pushdown(int)':
0_0_33214006_30288.cpp:39:5: error: 'tr' was not declared in this scope
op(tr[u],tr[u<<1],tr[u<<1|1]);
^
0_0_33214006_30288.cpp: In function 'void build(int, int, int)':
0_0_33214006_30288.cpp:45:2: error: 'tr' was not declared in this scope
tr[u]={l,r,0,0,1};
^
0_0_33214006_30288.cpp: In function 'void modify(int, int, int, ll, ll)':
0_0_33214006_30288.cpp:53:6: error: 'tr' was not declared in this scope
if(tr[u].l>=l&&tr[u].r<=r)
^
0_0_33214006_30288.cpp:62:13: error: 'tr' was not declared in this scope
int mid = tr[u].l + tr[u].r >>1;
^
0_0_33214006_30288.cpp: In function 'int main()':
0_0_33214006_30288.cpp:69:22: error: 'n' was not declared in this scope
while(scanf("%d%d",&n,&m)!=EOF,n||m)
^
0_0_33214006_30288.cpp:69:25: error: 'm' was not declared in this scope
while(scanf("%d%d",&n,&m)!=EOF,n||m)
^
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