Compilare: main.cpp: In function 'void builddrum(int)': main.cpp:51:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 51 | for (int i = 0; i + 1 < drum.size(); i++) | ~~~~~~^~~~~~~~~~~~~ main.cpp:63:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (int i = 0; i + 1 < drum.size(); i++) | ~~~~~~^~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:83:27: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 83 | for (int j = 0; j <= strlen(s); j++) | ~~^~~~~~~~~~~~ main.cpp:89:27: warning: comparison of integer expressions of different signedness: 'int' and 'size_t' {aka 'long unsigned int'} [-Wsign-compare] 89 | while (j2 <= strlen(s) && s[j2] >= '0' && s[j2] <= '9') | ~~~^~~~~~~~~~~~ main.cpp:73:15: warning: unused variable 'a' [-Wunused-variable] 73 | int n, m, a, b, c; | ^ main.cpp:73:18: warning: unused variable 'b' [-Wunused-variable] 73 | int n, m, a, b, c; | ^ main.cpp:73:21: warning: unused variable 'c' [-Wunused-variable] 73 | int n, m, a, b, c; | ^