Compilare: main.cpp: In function 'bool ispal(std::string)': main.cpp:14:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 14 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp: In function 'int main()': main.cpp:31:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 31 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 39 | for(int i = 1; i <= n; i++){ | ~~^~~~ main.cpp:48:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 48 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:60:15: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare] 60 | if(answer != -1) | ~~~~~~~^~~~~ main.cpp:62:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 62 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~ main.cpp:71:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 71 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:83:15: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare] 83 | if(answer == -1) | ~~~~~~~^~~~~ main.cpp:86:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 86 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~ main.cpp:95:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 95 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~