Compilare: main.cpp: In function 'int main()': main.cpp:24:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < N; i++) ~~^~~ main.cpp:26:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < N; i++) ~~^~~ main.cpp:27:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (j = 0; j < N; j++) ~~^~~ main.cpp:28:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (k = 0; k < N; k++) ~~^~~ main.cpp:30:78: warning: narrowing conversion of 'i' from 'unsigned int' to 'int' inside { } [-Wnarrowing] ijk[numere[i] + numere[j] + numere[k]] = vector<int>{i, j, k}; ^ main.cpp:30:78: warning: narrowing conversion of 'i' from 'unsigned int' to 'int' inside { } [-Wnarrowing] main.cpp:30:78: warning: narrowing conversion of 'j' from 'unsigned int' to 'int' inside { } [-Wnarrowing] main.cpp:30:78: warning: narrowing conversion of 'j' from 'unsigned int' to 'int' inside { } [-Wnarrowing] main.cpp:30:78: warning: narrowing conversion of 'k' from 'unsigned int' to 'int' inside { } [-Wnarrowing] main.cpp:30:78: warning: narrowing conversion of 'k' from 'unsigned int' to 'int' inside { } [-Wnarrowing] main.cpp:20:9: warning: unused variable 'c' [-Wunused-variable] int c = 0; ^