#include using namespace std; typedef signed long long ll; #define _P(...) (void)printf(__VA_ARGS__) #define FOR(x,to) for(x=0;x<(to);x++) #define FORR(x,arr) for(auto& x:arr) #define FORR2(x,y,arr) for(auto& [x,y]:arr) #define ALL(a) (a.begin()),(a.end()) #define ZERO(a) memset(a,0,sizeof(a)) #define MINUS(a) memset(a,0xff,sizeof(a)) template bool chmax(T &a, const T &b) { if(a bool chmin(T &a, const T &b) { if(a>b){a=b;return 1;}return 0;} //------------------------------------------------------- int N; ll M; ll A[202020],B[202020]; ll D[202020],C[202020]; int Q; ll X; __int128 get(int id,ll v) { if(id<0||id>=N) return 1LL<<60; __int128 num=0; if(v>=A[id]) { if(B[id]==0) num=M; else num=min(M,(v-A[id])/B[id]+1); } __int128 pre=(__int128)A[id]*num+(__int128)B[id]*num*(num-1)/2; __int128 suf=(__int128)A[id]*M+(__int128)B[id]*M*(M-1)/2-pre; __int128 ret=(2*num-M)*v-pre+suf; return ret; } void solve() { int i,j,k,l,r,x,y; string s; cin>>N>>M; FOR(i,N) { cin>>A[i]>>B[i]; } cin>>Q>>X; vector> V; FOR(i,N) { cin>>C[i]; if(i==0) { V.push_back({0,0}); } else { while(V.size()) { int pre=V.back().second; ll cur=1LL<<60; for(j=59;j>=0;j--) if(get(i,cur-(1LL<