답안 #633655

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
633655	2022-08-23T01:07:41 Z	lkh3happy	팔찌 (kriii4_V)	C++14	컴파일 오류	0 ms	0 KB

V

#include <stdio.h>
#include <algorithm>
#include <vector>
using namespace std;

long long mod=1e9+7, ep[1000001], mi[1000001]={1}, kp[1000001]={1};

long long po(long long x){
    long long sum=1, y=mod-2;
    for(;y;y>>=1, x=x*x%mod) if(y&1) sum=sum*x%mod;
    return sum;
}

int main(){
    long long n, k, ans=0;
    scanf("%lld%lld\n", &n, &k);
    for(int i=1;i<=n;i++) ep[i]=i;
    for(int i=2;i<=n;i++) if(ep[i]==i) for(int j=i;j<=n;j+=i) ep[j]=ep[j]/i*(i-1);
    for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
    for(int i=1;i<=n;i++) ans=(ans+(kp[i]*mi[i]%mod)*ep[n/i]*2+((i&1)?kp[i/2+1]*2:kp[i/2]+kp[i/2+1]))%mod;
    printf("%lld\n", (ans*mi[4]+1)%mod);
    return 0;
}

Compilation message

V.cpp: In function 'int main()':
V.cpp:19:28: error: no matching function for call to 'max(long long int&, int)'
   19 |     for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
      |                            ^
In file included from /usr/include/c++/10/algorithm:61,
                 from V.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:254:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  254 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:254:5: note:   template argument deduction/substitution failed:
V.cpp:19:28: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   19 |     for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
      |                            ^
In file included from /usr/include/c++/10/algorithm:61,
                 from V.cpp:2:
/usr/include/c++/10/bits/stl_algobase.h:300:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  300 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algobase.h:300:5: note:   template argument deduction/substitution failed:
V.cpp:19:28: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   19 |     for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
      |                            ^
In file included from /usr/include/c++/10/algorithm:62,
                 from V.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3480:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(std::initializer_list<_Tp>)'
 3480 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3480:5: note:   template argument deduction/substitution failed:
V.cpp:19:28: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   19 |     for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
      |                            ^
In file included from /usr/include/c++/10/algorithm:62,
                 from V.cpp:2:
/usr/include/c++/10/bits/stl_algo.h:3486:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(std::initializer_list<_Tp>, _Compare)'
 3486 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/10/bits/stl_algo.h:3486:5: note:   template argument deduction/substitution failed:
V.cpp:19:28: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long int'
   19 |     for(int i=1;i<=max(n, 4);i++) kp[i]=kp[i-1]*k%mod, ep[i]=(ep[i]*(mi[i]=po(i))+ep[i-1])%mod;
      |                            ^
V.cpp:16:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   16 |     scanf("%lld%lld\n", &n, &k);
      |     ~~~~~^~~~~~~~~~~~~~~~~~~~~~