0_0_15208628_4338.cpp:8:1: error: 'vector' does not name a type
vector <int> l[M], r[M];
^
0_0_15208628_4338.cpp: In function 'void solve()':
0_0_15208628_4338.cpp:14:18: error: 'sort' was not declared in this scope
sort(h, h+2*n);
^
0_0_15208628_4338.cpp:15:28: error: 'unique' was not declared in this scope
int m = unique(h, h+2*n)-h;
^
0_0_15208628_4338.cpp:17:9: error: 'l' was not declared in this scope
l[i].clear(), r[i].clear();
^
0_0_15208628_4338.cpp:17:23: error: 'r' was not declared in this scope
l[i].clear(), r[i].clear();
^
0_0_15208628_4338.cpp:19:40: error: 'lower_bound' was not declared in this scope
x[i] = lower_bound(h, h+m, x[i])-h;
^
0_0_15208628_4338.cpp:21:9: error: 'l' was not declared in this scope
l[x[i]].push_back(y[i]);
^
0_0_15208628_4338.cpp:22:9: error: 'r' was not declared in this scope
r[y[i]].push_back(x[i]);
^
0_0_15208628_4338.cpp:25:14: error: 'l' was not declared in this scope
sort(l[i].begin(), l[i].end());
^
0_0_15208628_4338.cpp:27:14: error: 'r' was not declared in this scope
sort(r[i].begin(), r[i].end());
^
0_0_15208628_4338.cpp:34:12: error: 'l' was not declared in this scope
if(l[i].size() == 0) continue;
^
0_0_15208628_4338.cpp:36:22: error: 'l' was not declared in this scope
for(auto &it:l[i]) {
^
0_0_15208628_4338.cpp:37:16: error: 'r' was not declared in this scope
if(r[it].size() == 1 && r[it][0] == i) continue;
^
0_0_15208628_4338.cpp:42:16: error: 'l' was not declared in this scope
if(l[i].size() == 1) c++;
^
0_0_15208628_4338.cpp:47:12: error: 'r' was not declared in this scope
if(r[i].size() == 0) continue;
^
0_0_15208628_4338.cpp:49:22: error: 'r' was not declared in this scope
for(auto &it:r[i]) {
^
0_0_15208628_4338.cpp:50:16: error: 'l' was not declared in this scope
if(l[it].size() == 1 && l[it][0] == i) continue;
^
0_0_15208628_4338.cpp:55:16: error: 'r' was not declared in this scope
if(r[i].size() == 1) c++;
^
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