Compilare: main.cpp: In function 'void compAint()': main.cpp:91:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j = 0; j < Chain[i].size(); ++ j) ~~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:97:26: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:99:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &v[i]); ^ main.cpp:104:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^ main.cpp:116:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d", &ty, &x, &y); ^