Compilare: main.cpp: In function 'void Lee(int, int)': main.cpp:27:127: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if(check(lv, cv) && ((Viz[lv][cv] > Viz[x.l][x.c] && A[x.l][x.c] == A[lv][cv]) || Viz[lv][cv] > Viz[x.l][x.c] + 1 && A[x.l][x.c] != A[lv][cv])) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:37:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("padure.in", "r", stdin); ^ main.cpp:38:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("padure.out", "w", stdout); ^ main.cpp:39:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%d%d%d%d", &N, &M, &Si, &Sj, &Fi, &Fj); ^ main.cpp:41:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] for(j = 1; j <= M; j++) scanf("%d", &A[i][j]); ^