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:38:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 38 | for(int i = 1; i <= n; i++){ | ~~^~~~ main.cpp:47:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 47 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:59:15: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare] 59 | if(answer != -1) | ~~~~~~~^~~~~ main.cpp:61:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 61 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~ main.cpp:70:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 70 | for(int i = 1; i <= n; i++) | ~~^~~~ main.cpp:82:15: warning: comparison of integer expressions of different signedness: 'long long unsigned int' and 'int' [-Wsign-compare] 82 | if(answer == -1) | ~~~~~~~^~~~~ main.cpp:85:26: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 85 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~ main.cpp:94:22: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 94 | for(int i = 1; i <= answer; i++){ | ~~^~~~~~~~~