Compilare: main.c: In function 'main': main.c:27:23: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(!q[g[l][r]]) ^ main.c:7:5: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("ciclu.in","r",stdin),freopen("ciclu.out","w",stdout),scanf("%d%d",&n,&m),w[0]=n; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:7:35: warning: ignoring return value of 'freopen', declared with attribute warn_unused_result [-Wunused-result] freopen("ciclu.in","r",stdin),freopen("ciclu.out","w",stdout),scanf("%d%d",&n,&m),w[0]=n; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.c:7:67: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] freopen("ciclu.in","r",stdin),freopen("ciclu.out","w",stdout),scanf("%d%d",&n,&m),w[0]=n; ^~~~~~~~~~~~~~~~~~~ main.c:9:9: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d%lld",a+i,b+i,c+i),++w[a[i]],c[i]*=100,k=(k<c[i]?c[i]:k); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~