Rezumat problemă

Arithmetic Equality

#3635

Dându-se un număr n, se vrea aflarea numărului de numere de n cifre există care au suma și produsul cifrelor egale.

IOIT 2020-21, Runda 1

Consola Stefan Dascalescu stefdasca.ro (stefdasca) Flaviu Crăciun, Ștefan Dăscălescu concurs

Clasa 11 Backtracking Elemente de combinatorică

Rezolvă

Detalii

Problema	Arithmetic Equality	Operații I/O	tastatură/ecran
Limita timp	1 secunde	Limita memorie	Total: 64 MB / Stivă 64 MB
Id soluție	#60145839	Utilizator	Pavel Stefan (stefan_1344)
Fișier	arithmetic_equality.cpp	Dimensiune	3.07 KB
Data încărcării	19 Octombrie 2025, 19:49	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

arithmetic_equality.cpp:17:27: error: 'std::vector<long long int> pow10' redeclared as different kind of symbol
 vector<ll> fact, invfact, pow10;

                           ^
In file included from /usr/include/features.h:374:0,
                 from /usr/include/assert.h:35,
                 from /usr/include/c++/4.8/cassert:43,
                 from /usr/include/i386-linux-gnu/c++/4.8/bits/stdc++.h:33,
                 from arithmetic_equality.cpp:1:
/usr/include/i386-linux-gnu/bits/mathcalls.h:122:1: error: previous declaration of 'double pow10(double)'
 __MATHCALL (pow10,, (_Mdouble_ __x));
 ^
arithmetic_equality.cpp: In function 'int main()':
arithmetic_equality.cpp:85:11: error: request for member 'assign' in 'pow10', which is of non-class type 'double(double)throw ()'
     pow10.assign(n+1, 1);

           ^
arithmetic_equality.cpp:86:41: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     for (int i = 1; i <= n; ++i) pow10[i] = pow10[i-1] * 10 % MOD;

                                         ^
arithmetic_equality.cpp:86:54: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     for (int i = 1; i <= n; ++i) pow10[i] = pow10[i-1] * 10 % MOD;

                                                      ^
arithmetic_equality.cpp:86:54: warning: pointer to a function used in arithmetic [-Wpointer-arith]
arithmetic_equality.cpp:86:58: error: invalid operands of types 'double(double)throw ()' and 'int' to binary 'operator*'
     for (int i = 1; i <= n; ++i) pow10[i] = pow10[i-1] * 10 % MOD;

                                                          ^
arithmetic_equality.cpp:89:23: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     repunit = (pow10[n] + MOD - 1) % MOD * inv9 % MOD;

                       ^
arithmetic_equality.cpp:89:27: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     repunit = (pow10[n] + MOD - 1) % MOD * inv9 % MOD;

                           ^
arithmetic_equality.cpp:89:33: warning: pointer to a function used in arithmetic [-Wpointer-arith]
     repunit = (pow10[n] + MOD - 1) % MOD * inv9 % MOD;

                                 ^
arithmetic_equality.cpp:89:38: error: invalid operands of types 'double (*)(double)throw ()' and 'const ll {aka const long long int}' to binary 'operator%'
     repunit = (pow10[n] + MOD - 1) % MOD * inv9 % MOD;

                                      ^

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