Eroare de compilare: main.cpp: In function 'int main()': main.cpp:13:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned int j = 1; j * 3 < len; j++) { ~~~~~~^~~~~ main.cpp:14:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned int i = 0; 2 * j + i < len; i++) { ~~~~~~~~~~^~~~~ main.cpp:15:75: error: 'strncmp' was not declared in this scope if (strncmp(triopalindrom.c_str() + i, triopalindrom.c_str() + i + j, j) == 0) { ^ Non zero exit status: 1