Compilare: main.cpp: In function 'void readPR()': main.cpp:56:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &k); ^ main.cpp:61:37: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n[i], &a[i]); ^ main.cpp: In function 'int main()': main.cpp:96:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &t); ^ main.cpp: In function 'void compMX()': main.cpp:49:27: warning: 'x' may be used uninitialized in this function [-Wmaybe-uninitialized] A[i] = (t += A[i] * B) % 10; ~~~~~^~~ main.cpp:73:20: note: 'x' was declared here int m = 1, x; ^