Compilare: main.cpp: In function 'std::string rev(int, int)': main.cpp:191:12: warning: array subscript 0 is outside array bounds of 'int [0]' [-Warray-bounds] 191 | d[0] = 2 + dp[dr][0]; | ~~~^ main.cpp:190:13: note: while referencing 'd' 190 | int d[]{}; | ^ main.cpp:192:12: warning: array subscript 1 is outside array bounds of 'int [0]' [-Warray-bounds] 192 | d[1] = 2 + dp[dr][1]; | ~~~^ main.cpp:190:13: note: while referencing 'd' 190 | int d[]{}; | ^ main.cpp:193:12: warning: array subscript 2 is outside array bounds of 'int [0]' [-Warray-bounds] 193 | d[2] = dp[dr][2]; | ~~~^ main.cpp:190:13: note: while referencing 'd' 190 | int d[]{}; | ^ main.cpp:194:12: warning: array subscript 3 is outside array bounds of 'int [0]' [-Warray-bounds] 194 | d[3] = dp[dr][3]; | ~~~^ main.cpp:190:13: note: while referencing 'd' 190 | int d[]{}; | ^ main.cpp:195:29: warning: array subscript 4 is outside array bounds of 'int [0]' [-Warray-bounds] 195 | int pd = min_element(d, d + 4) - d; | ~~~~~~~~~~~^~~~~~~~~~ main.cpp:190:13: note: at offset 16 into object 'd' of size 0 190 | int d[]{}; | ^ main.cpp:166:12: warning: array subscript 0 is outside array bounds of 'int [0]' [-Warray-bounds] 166 | d[0] = 2 + dp[dr][0]; | ~~~^ main.cpp:165:13: note: while referencing 'd' 165 | int d[]{}; | ^ main.cpp:167:12: warning: array subscript 1 is outside array bounds of 'int [0]' [-Warray-bounds] 167 | d[1] = dp[dr][1]; | ~~~^ main.cpp:165:13: note: while referencing 'd' 165 | int d[]{}; | ^ main.cpp:168:12: warning: array subscript 2 is outside array bounds of 'int [0]' [-Warray-bounds] 168 | d[2] = dp[dr][2]; | ~~~^ main.cpp:165:13: note: while referencing 'd' 165 | int d[]{}; | ^ main.cpp:169:12: warning: array subscript 3 is outside array bounds of 'int [0]' [-Warray-bounds]