Submission #1771637
Source Code Expand
#include <iostream> using namespace std; const long mod 1000000007 long *initial_sort(long &max); void cal (long *a1, long *a2 ,long *b, long max); void cal (long *a1, long *a2, long max); long sum (long *a, long *b,long max); int main(void) { long max = 1; long *a1; a1 = initial_sort(max); long *a2 = new long[(max/2)/2+1]; long *a3 = new long[max/2+1]; long *a4 = new long[max+1]; cal (a1,a2,(max/2)/2); cal (a2,a3,a1,max/2); cal (a3,a4,a1,max); cout << sum (a4,a1,max) << endl; return 0; } void cal (long *a1, long *a2 ,long *b, long max) { a2[0] = a2[1] = 0; for (long i = 2;i <= max;i ++){ a2[i] = a2[i-2] + a1[i/2]*b[i/2]; } } void cal (long *a1, long *a2, long max) { a2[0] = a2[1] = 0; for (long i = 2;i <= max;i++){ a2[i] = a2[i-2] + a1[i/2]; } } long sum (long *a, long *b, long max) { long result = 0; for (long i = 0;i <= max;i ++){ result += a[i]*b[i]; result = result % mod; } return result; } long *initial_sort(long &max) { long N,M; cin >> N; long *init = new long[1+(long)10e5]; for (long i = 0;i <= 10e5;i ++) init[i] = 0; for (long i = 0;i < N;i ++){ cin >> M; if (max < M) max = M; init[M] ++; } return init; }
Submission Info
Submission Time | |
---|---|
Task | B - 難易度 |
User | ran159357 |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1375 Byte |
Status | CE |
Compile Error
./Main.cpp:4:16: error: expected initializer before numeric constant const long mod 1000000007 ^ ./Main.cpp: In function ‘int main()’: ./Main.cpp:14:26: error: ‘initial_sort’ was not declared in this scope a1 = initial_sort(max); ^ ./Main.cpp: In function ‘long int sum(long int*, long int*, long int)’: ./Main.cpp:49:27: error: ‘mod’ was not declared in this scope result = result % mod; ^