Compilare: main.cpp: In function 'int main()': main.cpp:100:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < tun.size(); i++) ~~^~~~~~~~~~~~ main.cpp: In lambda function: main.cpp:106:30: warning: unused variable 'x' [-Wunused-variable] int a, b, c, x, y, z; ^ main.cpp:106:33: warning: unused variable 'y' [-Wunused-variable] int a, b, c, x, y, z; ^ main.cpp:106:36: warning: unused variable 'z' [-Wunused-variable] int a, b, c, x, y, z; ^ main.cpp: In lambda function: main.cpp:122:22: warning: unused variable 'x' [-Wunused-variable] int a, b, c, x, y, z; ^ main.cpp:122:25: warning: unused variable 'y' [-Wunused-variable] int a, b, c, x, y, z; ^ main.cpp:122:28: warning: unused variable 'z' [-Wunused-variable] int a, b, c, x, y, z; ^