Compilare: main.cpp: In function 'std::string rev(int, int)': main.cpp:199:12: warning: array subscript 0 is outside array bounds of 'int [0]' [-Warray-bounds] 199 | d[0] = 2 + dp[dr][0]; | ~~~^ main.cpp:198:13: note: while referencing 'd' 198 | int d[]{}; | ^ main.cpp:200:12: warning: array subscript 1 is outside array bounds of 'int [0]' [-Warray-bounds] 200 | d[1] = 2 + dp[dr][1]; | ~~~^ main.cpp:198:13: note: while referencing 'd' 198 | int d[]{}; | ^ main.cpp:201:12: warning: array subscript 2 is outside array bounds of 'int [0]' [-Warray-bounds] 201 | d[2] = dp[dr][2]; | ~~~^ main.cpp:198:13: note: while referencing 'd' 198 | int d[]{}; | ^ main.cpp:202:12: warning: array subscript 3 is outside array bounds of 'int [0]' [-Warray-bounds] 202 | d[3] = dp[dr][3]; | ~~~^ main.cpp:198:13: note: while referencing 'd' 198 | int d[]{}; | ^ main.cpp:203:30: warning: array subscript 4 is outside array bounds of 'int [0]' [-Warray-bounds] 203 | int pd = minn_element(d, d + 4) - d; | ~~~~~~~~~~~~^~~~~~~~~~ main.cpp:198:13: note: at offset 16 into object 'd' of size 0 198 | int d[]{}; | ^ main.cpp:174:12: warning: array subscript 0 is outside array bounds of 'int [0]' [-Warray-bounds] 174 | d[0] = 2 + dp[dr][0]; | ~~~^ main.cpp:173:13: note: while referencing 'd' 173 | int d[]{}; | ^ main.cpp:175:12: warning: array subscript 1 is outside array bounds of 'int [0]' [-Warray-bounds] 175 | d[1] = dp[dr][1]; | ~~~^ main.cpp:173:13: note: while referencing 'd' 173 | int d[]{}; | ^ main.cpp:176:12: warning: array subscript 2 is outside array bounds of 'int [0]' [-Warray-bounds] 176 | d[2] = dp[dr][2]; | ~~~^ main.cpp:173:13: note: while referencing 'd' 173 | int d[]{}; | ^ main.cpp:177:12: warning: array subscript 3 is outside array bounds of 'int [0]' [-Warray-bounds]