Eroare de compilare: main.cpp:14:18: error: 'int y0 [320002]' redeclared as different kind of symbol int k0[NM], y0[NM]; ^ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:507, from /usr/include/c++/6/cassert:43, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:250:1: note: previous declaration 'double y0(double)' __MATHCALL (y0,, (_Mdouble_)); ^ main.cpp:15:18: error: 'int y1 [320002]' redeclared as different kind of symbol int k1[NM], y1[NM]; ^ In file included from /usr/include/features.h:367:0, from /usr/include/x86_64-linux-gnu/c++/6/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/6/bits/c++config.h:507, from /usr/include/c++/6/cassert:43, from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:251:1: note: previous declaration 'double y1(double)' __MATHCALL (y1,, (_Mdouble_)); ^ main.cpp: In function 'int a(int, int, int)': main.cpp:37:34: warning: pointer to a function used in arithmetic [-Wpointer-arith] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]); ^ main.cpp:37:34: warning: pointer to a function used in arithmetic [-Wpointer-arith] main.cpp:37:54: warning: pointer to a function used in arithmetic [-Wpointer-arith] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]); ^ main.cpp:37:34: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]); ~~~~~~~~~~~~~~~~~^ main.cpp:21:5: note: initializing argument 1 of 'int sum1(int, int)' int sum1(int p1, int p2) ^~~~ main.cpp:37:54: error: invalid conversion from 'double (*)(double) throw ()' to 'int' [-fpermissive] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]); ~~~~~~~~~~~~~~~~~^ main.cpp:21:5: note: initializing argument 2 of 'int sum1(int, int)' int sum1(int p1, int p2) ^~~~ main.cpp:37:85: warning: pointer to a function used in arithmetic [-Wpointer-arith] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]); ^ main.cpp:37:85: warning: pointer to a function used in arithmetic [-Wpointer-arith] main.cpp:37:101: warning: pointer to a function used in arithmetic [-Wpointer-arith] return sum1(y1[k1[p1 - 1] + 1], y1[k1[p1 - 1] + d]) - sum0(y0[k0[p1 - 1] - d + 1], y0[k0[p1 - 1]]);