Rezumat problemă

xorsum

#3556

Se dau numerele naturale n, x, y, z, t. Se generează vectorul a astfel: a[i] = (a[i-1] * x + y) % z, pentru 1 ≤ i ≤ n si a[i] = 0 pentru i = 0. Determinați ∑(a[i] XOR a[j]), unde 1 ≤ i < j ≤ n, modulo t.

Consola Moca Andrei (TREYWAY) Andrei Moca dificilă

Clasa 11 Probleme diverse Matematica

Rezolvă

Detalii

Problema	xorsum	Operații I/O	tastatură/ecran
Limita timp	0.1 secunde	Limita memorie	Total: 1 MB / Stivă 1 MB
Id soluție	#63376386	Utilizator	Victor Enescu (icmcita)
Fișier	xorsum.cpp	Dimensiune	3.41 KB
Data încărcării	28 Februarie 2026, 17:26	Scor/rezultat	Eroare de compilare

Evaluare

Mesaj compilare

xorsum.cpp:45:1: error: stray '\`' in program
 \`\`\`

 ^
xorsum.cpp:45:1: error: stray '\`' in program
xorsum.cpp:45:1: error: stray '\`' in program
xorsum.cpp:47:1: error: stray '\`' in program
 \`\`\`python

 ^
xorsum.cpp:47:1: error: stray '\`' in program
xorsum.cpp:47:1: error: stray '\`' in program
xorsum.cpp:81:1: error: stray '\`' in program
 \`\`\`

 ^
xorsum.cpp:81:1: error: stray '\`' in program
xorsum.cpp:81:1: error: stray '\`' in program
xorsum.cpp:83:1: error: stray '\`' in program
 \`\`\`swift

 ^
xorsum.cpp:83:1: error: stray '\`' in program
xorsum.cpp:83:1: error: stray '\`' in program
xorsum.cpp:86:1: error: stray '@' in program
 @inline(__always)

 ^
xorsum.cpp:96:1: error: stray '@' in program
 @inline(__always)

 ^
xorsum.cpp:133:18: error: too many decimal points in number
         for _ in 1...n {

                  ^
xorsum.cpp:137:22: error: too many decimal points in number
             for b in 0..<62 {

                      ^
xorsum.cpp:147:14: error: too many decimal points in number
     for b in 0..<62 {

              ^
xorsum.cpp:5:14: error: expected type-specifier before '__uint128_t'
 using u128 = __uint128_t;

              ^
xorsum.cpp: In function 'int main()':
xorsum.cpp:23:26: error: 'u128' was not declared in this scope
         u64 ai = (u64)(((u128)prev * x + y) % z);

                          ^
xorsum.cpp:23:31: error: expected ')' before 'prev'
         u64 ai = (u64)(((u128)prev * x + y) % z);

                               ^
xorsum.cpp:23:49: error: expected ')' before ';' token
         u64 ai = (u64)(((u128)prev * x + y) % z);

                                                 ^
xorsum.cpp:35:9: error: 'u128' was not declared in this scope
         u128 pairs = (u128)ones * zeros;

         ^
xorsum.cpp:35:14: error: expected ';' before 'pairs'
         u128 pairs = (u128)ones * zeros;

              ^
xorsum.cpp:36:30: error: 'pairs' was not declared in this scope
         u64 contrib = (u64)((pairs % t) * pow2mod % t);

                              ^
xorsum.cpp:39:31: error: expected ')' before 'pow2mod'
         pow2mod = (u64)((u128)pow2mod * 2 % t);

                               ^
xorsum.cpp:34:13: warning: unused variable 'zeros' [-Wunused-variable]
         u64 zeros = n - ones;

             ^
xorsum.cpp: At global scope:
xorsum.cpp:47:4: error: 'python' does not name a type
 \`\`\`python

    ^
xorsum.cpp:97:1: error: expected initializer before 'func'
 func mulMod(_ aIn: UInt64, _ bIn: UInt64, _ mod: UInt64) -> UInt64 {

 ^

Cum funcționează evaluarea?