Compilare: main.cpp: In function 'void dfs1(int, int)': main.cpp:35:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'void dfs2(int, int)': main.cpp:49:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<w[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp: In function 'int cuplez(int, int, int)': main.cpp:65:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<w[y].size();i++){ ~^~~~~~~~~~~~ main.cpp:76:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<w[y].size();i++){ ~^~~~~~~~~~~~ main.cpp: In function 'int cuplaj(int, int)': main.cpp:94:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v[x].size();i++){ ~^~~~~~~~~~~~ main.cpp:102:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<w[y].size();i++){ ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:162:47: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (cuplaj(l1[i] , l2[j]) == w[l2[j]].size()-1){ /// DOAR nodurile care sunt fii astora ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~ main.cpp:115:30: warning: ignoring return value of 'size_t fread(void*, size_t, size_t, FILE*)', declared with attribute warn_unused_result [-Wunused-result] fread (buff,1,100000,fin); ^