結果
問題 | No.1282 Display Elements |
ユーザー | LayCurse |
提出日時 | 2020-11-06 21:23:42 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 35 ms / 2,000 ms |
コード長 | 7,995 bytes |
コンパイル時間 | 3,400 ms |
コンパイル使用メモリ | 226,016 KB |
実行使用メモリ | 6,912 KB |
最終ジャッジ日時 | 2024-07-22 12:01:38 |
合計ジャッジ時間 | 4,678 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 3 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 2 ms
5,376 KB |
testcase_04 | AC | 3 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 2 ms
5,376 KB |
testcase_09 | AC | 2 ms
5,376 KB |
testcase_10 | AC | 3 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 2 ms
5,376 KB |
testcase_14 | AC | 2 ms
5,376 KB |
testcase_15 | AC | 28 ms
6,656 KB |
testcase_16 | AC | 13 ms
5,376 KB |
testcase_17 | AC | 25 ms
6,272 KB |
testcase_18 | AC | 15 ms
5,504 KB |
testcase_19 | AC | 17 ms
6,656 KB |
testcase_20 | AC | 15 ms
6,656 KB |
testcase_21 | AC | 32 ms
6,784 KB |
testcase_22 | AC | 35 ms
6,912 KB |
testcase_23 | AC | 31 ms
6,912 KB |
ソースコード
#pragma GCC optimize ("Ofast") #include<bits/stdc++.h> using namespace std; void*wmem; char memarr[96000000]; template<class T> inline void walloc1d(T **arr, int x, void **mem = &wmem){ static int skip[16] = {0, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1}; (*mem) = (void*)( ((char*)(*mem)) + skip[((unsigned long long)(*mem)) & 15] ); (*arr)=(T*)(*mem); (*mem)=((*arr)+x); } template<class T> inline void walloc1d(T **arr, int x1, int x2, void **mem = &wmem){ walloc1d(arr, x2-x1, mem); (*arr) -= x1; } void sortF_L(int N, unsigned A[], void *mem = wmem){ int i; int m; int bt; unsigned*arr; unsigned c; int*sz; if(N < 256){ sort(A, A+N); return; } bt = sizeof(unsigned) * 8; walloc1d(&arr, N, &mem); walloc1d(&sz, N, &mem); for(m=0;m<bt;m+=8){ for(i=(0);i<(257);i++){ sz[i] = 0; } for(i=(0);i<(N);i++){ sz[ 1+((A[i]>>m)&255u) ]++; } for(i=(1);i<(257);i++){ sz[i] += sz[i-1]; } for(i=(0);i<(N);i++){ c = ((A[i]>>m)&255u); arr[sz[c]++] = A[i]; } swap(A, arr); } } void sortF_L(int N, int A[], void *mem = wmem){ int i; int x; int y; int z; int*arr; unsigned*send; if(N < 256){ sort(A, A+N); return; } send = (unsigned*)A; sortF_L(N, send, mem); if(A[0] < 0 || A[N-1] >= 0){ return; } x = 0; y = N; while(x < y){ z = (x+y) / 2; if(A[z] < 0){ y = z; } else{ x = z+1; } } walloc1d(&arr, N, &mem); z = 0; for(i=(x);i<(N);i++){ arr[z++] = A[i]; } for(i=(0);i<(x);i++){ arr[z++] = A[i]; } for(i=(0);i<(N);i++){ A[i] = arr[i]; } } void sortF_L(int N, unsigned long long A[], void *mem = wmem){ int i; int m; int bt; unsigned long long*arr; unsigned c; int*sz; if(N < 512){ sort(A, A+N); return; } bt = sizeof(unsigned long long) * 8; walloc1d(&arr, N, &mem); walloc1d(&sz, N, &mem); for(m=0;m<bt;m+=8){ for(i=(0);i<(257);i++){ sz[i] = 0; } for(i=(0);i<(N);i++){ sz[ 1+((A[i]>>m)&255u) ]++; } for(i=(1);i<(257);i++){ sz[i] += sz[i-1]; } for(i=(0);i<(N);i++){ c = ((A[i]>>m)&255u); arr[sz[c]++] = A[i]; } swap(A, arr); } } void sortF_L(int N, long long A[], void *mem = wmem){ int i; int x; int y; int z; long long*arr; unsigned long long*send; if(N < 512){ sort(A, A+N); return; } send = (unsigned long long*)A; sortF_L(N, send, mem); if(A[0] < 0 || A[N-1] >= 0){ return; } x = 0; y = N; while(x < y){ z = (x+y) / 2; if(A[z] < 0){ y = z; } else{ x = z+1; } } walloc1d(&arr, N, &mem); z = 0; for(i=(x);i<(N);i++){ arr[z++] = A[i]; } for(i=(0);i<(x);i++){ arr[z++] = A[i]; } for(i=(0);i<(N);i++){ A[i] = arr[i]; } } inline int my_getchar_unlocked(){ static char buf[1048576]; static int s = 1048576; static int e = 1048576; if(s == e && e == 1048576){ e = fread_unlocked(buf, 1, 1048576, stdin); s = 0; } if(s == e){ return EOF; } return buf[s++]; } inline void rd(int &x){ int k; int m=0; x=0; for(;;){ k = my_getchar_unlocked(); if(k=='-'){ m=1; break; } if('0'<=k&&k<='9'){ x=k-'0'; break; } } for(;;){ k = my_getchar_unlocked(); if(k<'0'||k>'9'){ break; } x=x*10+k-'0'; } if(m){ x=-x; } } struct MY_WRITER{ char buf[1048576]; int s; int e; MY_WRITER(){ s = 0; e = 1048576; } ~MY_WRITER(){ if(s){ fwrite_unlocked(buf, 1, s, stdout); } } } ; MY_WRITER MY_WRITER_VAR; void my_putchar_unlocked(int a){ if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){ fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout); MY_WRITER_VAR.s = 0; } MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a; } inline void wt_L(char a){ my_putchar_unlocked(a); } inline void wt_L(long long x){ int s=0; int m=0; char f[20]; if(x<0){ m=1; x=-x; } while(x){ f[s++]=x%10; x/=10; } if(!s){ f[s++]=0; } if(m){ my_putchar_unlocked('-'); } while(s--){ my_putchar_unlocked(f[s]+'0'); } } template<class T> int coordcomp_L(int n, T arr[], int res[] = NULL, void *mem = wmem){ int i; int k = 0; pair<T,int>*r; walloc1d(&r, n, &mem); for(i=(0);i<(n);i++){ r[i].first = arr[i]; r[i].second = i; } sort(r, r+n); if(res != NULL){ for(i=(0);i<(n);i++){ if(i && r[i].first != r[i-1].first){ k++; } res[r[i].second] = k; } } else{ for(i=(0);i<(n);i++){ if(i && r[i].first != r[i-1].first){ k++; } arr[r[i].second] = k; } } return k+1; } template<class T> int coordcomp_L(int n1, T arr1[], int n2, T arr2[], int res1[] = NULL, int res2[] = NULL, void *mem = wmem){ int i; int k = 0; pair<T,int>*r; walloc1d(&r, n1+n2, &mem); for(i=(0);i<(n1);i++){ r[i].first = arr1[i]; r[i].second = i; } for(i=(0);i<(n2);i++){ r[n1+i].first = arr2[i]; r[n1+i].second = n1+i; } sort(r, r+n1+n2); for(i=(0);i<(n1+n2);i++){ if(i && r[i].first != r[i-1].first){ k++; } if(r[i].second < n1){ if(res1!=NULL){ res1[r[i].second] = k; } else{ arr1[r[i].second] = k; } } else{ if(res2!=NULL){ res2[r[i].second-n1] = k; } else{ arr2[r[i].second-n1] = k; } } } return k+1; } template<class T> struct fenwick{ int size; int memory; T*data; void malloc(int mem); void malloc(int mem, int fg); void walloc(int mem, void **workMemory = &wmem); void walloc(int mem, int fg, void **workMemory = &wmem); void free(void); void init(int N); void add(int k, T val); T get(int k); T range(int a, int b); int kth(T k); } ; int N; int A[100000]; int B[100000]; fenwick<int> f; int main(){ int i; wmem = memarr; int sz; long long res = 0; rd(N); { int Lj4PdHRW; for(Lj4PdHRW=(0);Lj4PdHRW<(N);Lj4PdHRW++){ rd(A[Lj4PdHRW]); } } { int e98WHCEY; for(e98WHCEY=(0);e98WHCEY<(N);e98WHCEY++){ rd(B[e98WHCEY]); } } sz =coordcomp_L(N,A,N,B); f.walloc(sz, 1); sortF_L(N,A); for(i=(0);i<(N);i++){ f.add(B[i],1); res += f.get(A[i]-1); } wt_L(res); wt_L('\n'); return 0; } template<class T> void fenwick<T>::malloc(int mem){ memory = mem; data = (T*)std::malloc(sizeof(T)*mem); } template<class T> void fenwick<T>::malloc(int mem, int fg){ memory = mem; data = (T*)std::malloc(sizeof(T)*mem); if(fg){ init(mem); } } template<class T> void fenwick<T>::walloc(int mem, void **workMemory /* = &wmem*/){ memory = mem; walloc1d(&data, mem, workMemory); } template<class T> void fenwick<T>::walloc(int mem, int fg, void **workMemory /* = &wmem*/){ memory = mem; walloc1d(&data, mem, workMemory); if(fg){ init(mem); } } template<class T> void fenwick<T>::free(void){ memory = 0; free(data); } template<class T> void fenwick<T>::init(int N){ size = N; memset(data,0,sizeof(T)*N); } template<class T> void fenwick<T>::add(int k, T val){ while(k < size){ data[k] += val; k |= k+1; } } template<class T> T fenwick<T>::get(int k){ T res = 0; while(k>=0){ res += data[k]; k = (k&(k+1))-1; } return res; } template<class T> T fenwick<T>::range(int a, int b){ if(b==-1){ b=size-1; } return get(b) - get(a-1); } template<class T> int fenwick<T>::kth(T k){ int i=0; int j=size; int c; T v; while(i<j){ c = (i+j)/2; v = get(c); if(v <= k){ i=c+1; } else{ j=c; } } return i==size?-1:i; } // cLay varsion 20201102-1 // --- original code --- // int N, A[1d5], B[1d5]; // fenwick<int> f; // { // int sz; // ll res = 0; // rd(N,A(N),B(N)); // sz = coordcomp(N,A,N,B); // f.walloc(sz, 1); // sortF(N,A); // rep(i,N){ // f.add(B[i],1); // res += f.get(A[i]-1); // } // wt(res); // }