Run ID 作者 问题 语言 测评结果 Time Memory 代码长度 提交时间
118601 罗迎甲 22第n项的数 C++ Compile Error 0 MS 0 KB 540 2025-05-05 16:41:54

Tests(0/0):

Code:

#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int n,d1,d2,sum,a[101]; cin>>n;//等差an=a1+(n-1)*d 等丙an=a1*q^(n-1) for(int i=0;i<4;i++){ cin>>a[i]; } d1=a[1]-a[0]; d2=a[2]-a[1]; if(d2==d1) sum=a[0]+(n-1)*d1; else sum=a[0]*pow(a[1]/a[0]n-1); return 0; }

Run Info:

Main.cc: In function 'int main()':
Main.cc:18:31: error: expected ')' before 'n'
         sum=a[0]*pow(a[1]/a[0]n-1);    
                               ^
Main.cc:18:34: error: no matching function for call to 'pow(int)'
         sum=a[0]*pow(a[1]/a[0]n-1);    
                                  ^
In file included from /usr/include/features.h:367:0,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/os_defines.h:39,
                 from /usr/include/x86_64-linux-gnu/c++/5/bits/c++config.h:482,
                 from /usr/include/c++/5/iostream:38,
                 from Main.cc:1:
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:153:1: note: candidate: double pow(double, double)
 __MATHCALL_VEC (pow,, (_Mdouble_ __x, _Mdouble_ __y));
 ^
/usr/include/x86_64-linux-gnu/bits/mathcalls.h:153:1: note:   candidate expects 2 arguments, 1 provided
In file included from Main.cc:5:0:
/usr/include/c++/5/cmath:434:5: note: candidate: template constexpr typename __gnu_cxx::__promote_2<_Tp, _Up>::__type std::pow(_Tp, _Up)
     pow(_Tp __x, _Up __y)
     ^
/usr/include/c++/5/cmath:434:5: note:   template argument deduction/substitution failed:
Main.cc:18:34: note:   candidate expects 2 arguments, 1 provided
         sum=a[0]*pow(a[1]/a[0]n-1);    
                                  ^
In file included from Main.cc:5:0:
/usr/include/c++/5/cmath:411:3: note: candidate: constexpr long double std::pow(long double, long double)
   pow(long double __x, long double __y)
   ^
/usr/include/c++/5/cmath:411:3: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/5/cmath:407:3: note: candidate: constexpr float std::pow(float, float)
   pow(float __x, float __y)
   ^
/usr/include/c++/5/cmath:407:3: note:   candidate expects 2 arguments, 1 provided