Submit Info #5724

Problem Lang User Status Time Memory
Sum of Floor of Linear cpp hotman AC 129 ms 1.80 MiB

ケース詳細
Name Status Time Memory
example_00 AC 2 ms 0.68 MiB
random_00 AC 34 ms 0.92 MiB
random_01 AC 129 ms 1.80 MiB
random_02 AC 99 ms 1.60 MiB
random_03 AC 67 ms 1.33 MiB
random_04 AC 28 ms 0.92 MiB
small_00 AC 21 ms 0.72 MiB
small_01 AC 81 ms 1.11 MiB
small_02 AC 63 ms 0.91 MiB
small_03 AC 44 ms 0.85 MiB
small_04 AC 20 ms 0.73 MiB

#pragma GCC optimize("Ofast") #pragma GCC optimize("unroll-loops") #pragma GCC push_options #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") #include<bits/stdc++.h> #include <xmmintrin.h> #include <immintrin.h> using namespace::std; __attribute__((constructor))void init(){cin.tie(0);ios::sync_with_stdio(false);cout<<fixed<<setprecision(15);} #include<ext/pb_ds/assoc_container.hpp> #include<ext/pb_ds/tree_policy.hpp> #include <ext/pb_ds/priority_queue.hpp> #include<ext/pb_ds/tag_and_trait.hpp> // #include <boost/multiprecision/cpp_dec_float.hpp> // #include <boost/multiprecision/cpp_int.hpp> // namespace mp = boost::multiprecision; // typedef mp::number<mp::cpp_dec_float<0>> cdouble; // typedef mp::cpp_int cint; template<typename T>using pbds=__gnu_pbds::tree<T,__gnu_pbds::null_type,less<T>,__gnu_pbds::rb_tree_tag,__gnu_pbds::tree_order_statistics_node_update>; template<typename T>using pbds_map=__gnu_pbds::tree<T,T,less<T>,__gnu_pbds::rb_tree_tag,__gnu_pbds::tree_order_statistics_node_update>; template<typename T,typename E>using hash_map=__gnu_pbds::gp_hash_table<T,E>; template<typename T>using pqueue =__gnu_pbds::priority_queue<T, greater<T>,__gnu_pbds::rc_binomial_heap_tag>; typedef long long lint; #define INF (1LL<<60) #define IINF (1<<30) #define EPS (1e-10) //#define MOD 1000000007LL #define MOD 998244353LL typedef vector<lint> vec; typedef vector<vector<lint>> mat; typedef vector<vector<vector<lint>>> mat3; typedef vector<string> svec; typedef vector<vector<string>> smat; template<typename T>inline void numout(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i<INF/2?i:"INF";f=1;}cout<<endl;} template<typename T>inline void numout2(T t){for(auto i:t)numout(i);} template<typename T>inline void output(T t){bool f=0;for(auto i:t){cout<<(f?" ":"")<<i;f=1;}cout<<endl;} template<typename T>inline void output2(T t){for(auto i:t)output(i);} template<typename T>inline void _output(T t){bool f=0;for(lint i=0;i<t.size();i++){cout<<f?"":" "<<t[i];f=1;}cout<<endl;} template<typename T>inline void _output2(T t){for(lint i=0;i<t.size();i++)output(t[i]);} #define rep(i,n) for(lint i=0;i<lint(n);++i) #define repi(i,a,b) for(lint i=lint(a);i<(lint)(b);++i) #define rrep(i,n) for(lint i=lint(n)-1;i>=0;--i) #define rrepi(i,a,b) for(lint i=lint(b)-1;i>=lint(a);--i) #define irep(i) for(lint i=0;;++i) #define all(n) begin(n),end(n) #define dist(a,b,c,d) sqrt(pow(a-c,2)+pow(b-d,2)) inline lint gcd(lint A,lint B){return B?gcd(B,A%B):A;} inline lint lcm(lint A,lint B){return A/gcd(A,B)*B;} // inline cint cgcd(cint A,cint B){return B?cgcd(B,A%B):A;} // inline cint clcm(cint A,cint B){return A/cgcd(A,B)*B;} inline bool chmin(auto& s,const auto& t){bool res=s>t;s=min(s,t);return res;} inline bool chmax(auto& s,const auto& t){bool res=s<t;s=max(s,t);return res;} const vector<lint> dx={1,0,-1,0,1,1,-1,-1}; const vector<lint> dy={0,1,0,-1,1,-1,1,-1}; #define SUM(v) accumulate(all(v),0LL) auto call=[&](auto f,auto... args){return f(f,args...);}; lint sum_of_floor_linear(lint a,lint b,lint c,lint n){ lint tmp=b/c*n+a/c*n*(n-1)/2; if(a%c==0){ return tmp; } lint next=(c-b%c+a%c-1)/(a%c); if(next>=n){ return tmp; } a%=c; b=b%c+a*next; n-=next; return tmp+sum_of_floor_linear(c,n*a-((b+a*(n-1))/c*c-b),a,(b+a*(n-1))/c); } int main(){ lint t; cin>>t; while(t--){ lint n,c,a,b; cin>>n>>c>>a>>b; cout<<sum_of_floor_linear(a,b,c,n)<<endl; } }