Eroare de compilare: main.cpp:9:8: error: 'int y1' redeclared as different kind of entity 9 | int x1,y1,x2,y2; | ^~ In file included from /usr/include/features.h:461, from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:522, from /usr/include/c++/10/cassert:43, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:221:1: note: previous declaration 'double y1(double)' 221 | __MATHCALL (y1,, (_Mdouble_)); | ^~~~~~~~~~ main.cpp: In function 'void walk()': main.cpp:40:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] 40 | v[x1][y1-1]=piece; | ~~^~ main.cpp:40:18: error: invalid types 'int [1605][double (*)(double) throw () {aka double (*)(double)}]' for array subscript 40 | v[x1][y1-1]=piece; | ^ main.cpp:41:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] 41 | v[x1][y1-2]=piece; | ~~^~ main.cpp:41:18: error: invalid types 'int [1605][double (*)(double) throw () {aka double (*)(double)}]' for array subscript 41 | v[x1][y1-2]=piece; | ^ main.cpp:42:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] 42 | v[x1][y1-3]=piece; | ~~^~ main.cpp:42:18: error: invalid types 'int [1605][double (*)(double) throw () {aka double (*)(double)}]' for array subscript 42 | v[x1][y1-3]=piece; | ^ main.cpp:47:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] 47 | y1-=3; | ~~^~~ main.cpp:47:15: error: assignment of read-only location 'y1' main.cpp:55:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] 55 | v[x1][y1-1]=piece; | ~~^~ main.cpp:55:18: error: invalid types 'int [1605][double (*)(double) throw () {aka double (*)(double)}]' for array subscript 55 | v[x1][y1-1]=piece; | ^ main.cpp:56:21: warning: pointer to a function used in arithmetic [-Wpointer-arith] 56 | v[x1][y1-2]=piece; | ~~^~ main.cpp:56:18: error: invalid types 'int [1605][double (*)(double) throw () {aka double (*)(double)}]' for array subscript 56 | v[x1][y1-2]=piece; | ^ main.cpp:60:15: warning: pointer to a function used in arithmetic [-Wpointer-arith] 60 | y1-=2; | ~~^~~ Non zero exit status: 1