Submission #9580

#TimeUsernameProblemLanguageResultExecution timeMemory
9580dominyellowWiring (kriii2_W)C++98
1 / 4
0 ms1088 KiB
#include <stdio.h> #include <map> #include <queue> #include <set> #include <vector> using namespace std; int main(void){ long N; scanf("%d", &N); bool is_even; if(N%2 != 0){ is_even = false; } else{ is_even = true; } N = N/2; if(is_even){ printf("%d", 2*N-1); } else{ printf("%d", N); } //map<long, long> q_map; //q_map[0] = 0; //map<pair<long, long>, bool> line_map; //long line_count = 0; //long i; //for(long i=1; i<=N; i++){ // long q_i; // q_i = (q_map[i-1]+i) % N; // //prlongf("%d\n", q_i); // if(q_i == 0){ // //break; // } // if(q_map.count(i) == 0){ // q_map[i] = q_i; // } // if(q_map[i-1] != q_i){ // if(line_map.count(make_pair(q_map[i-1], q_i)) == 0 && line_map.count(make_pair(q_i, q_map[i-1])) == 0){ // line_map[make_pair(q_map[i-1], q_i)] = true; // line_count += 1; // } // } //} //printf("%ld\n", line_count); return 0; }
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