제출 #404783

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
404783		tqbfjotld	MalnaRISC (COI21_malnarisc)	C++14	0 / 100	1 ms	332 KiB

malnarisc

#include <bits/stdc++.h>
using namespace std;

vector<vector<pair<int,int> > > stuff(int n){
    if (n==2){
        vector<pair<int,int> > t;
        t.push_back({1,2});
        vector<vector<pair<int,int> > >ret;
        ret.push_back(t);
        return ret;
    }
    vector<vector<pair<int,int> > > ret;
    auto res = stuff(n/2);
    for (auto x : res){
        vector<pair<int,int> > t;
        for (auto y : x){
            t.push_back({n/2+1-y.first,n/2+1-y.second});
            t.push_back({n/2+y.first,n/2+y.second});
        }
        ret.push_back(t);
    }
    int t2 = n/2;
    while (t2>0){
        vector<pair<int,int> > t;
        for (int x = 0; x<n; x++){
            if ((x&t2)==0){
                t.push_back({x+1,x+t2+1});
            }
        }
        ret.push_back(t);
        t2>>=1;
    }
    return ret;
}


int main(){
    int n;
    scanf("%d",&n);
    int t = 1;
    while (t<n) t<<=1;
    auto res = stuff(t);
    for (auto x : res){
        for (auto y : x){
            if (y.first>n || y.second>n) continue;
            printf("CMPSWP R%d R%d ",y.first,y.second);
        }
        printf("\n");
    }
}

컴파일 시 표준 에러 (stderr) 메시지

malnarisc.cpp: In function 'int main()':
malnarisc.cpp:39:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   39 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~

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